Department 04 · 25 scenarios

Emergency Department

See the risk. Understand the response.
Practise the reasoning you will carry to the bedside.

Plain English Primary sources Students & tutors

From routine safety to critical change

Learn the reasoning. Follow your local clinical pathway. These are fictional teaching cases, not patient-specific treatment instructions. Adult, pregnancy, pediatric and neonatal responses differ. Use the population-specific pathway and verified weight where required. Use current facility protocols, authorized orders and your scope of practice. Students work under supervision. In a real emergency, activate clinical help rather than consult this page.

How to use these cases Read the cues before opening the actions. Name your first priority, then compare your reasoning. The difficulty describes learning complexity; even an introductory case can involve a serious risk.

5 introductory5 intermediate5 difficult10 extremely difficult

Find or jump to a scenario

Learning complexity

25 of 25 scenarios

Open a scenario to explore its actions25 original cases

Triage & changing acuity

A waiting patient’s breathing changes

Introductory

The situation

A patient triaged earlier for a cough now speaks only short phrases and looks exhausted. The waiting room is crowded and their original category was non-urgent. A relative asks whether the person can simply wait their turn.

What should catch your attention

New short speech
Visible exhaustion
Old triage category

Your immediate priority

Repeat the clinical assessment immediately and move to the appropriate monitored pathway based on current risk.

01New short speech
02Repeat the clinical assessment immediately and move to the appropriate monitored pathway based on current risk.
03Check response + communicate

Decision pathway · a learning summary, not a substitute for the full clinical plan

What the RN should do—and why

1
Respond to the situation first
Repeat the clinical assessment immediately and move to the appropriate monitored pathway based on current risk. [1]
Why it matters Arrival order and an earlier triage category do not reflect all current risk.
2
Assess current risk
Use the validated triage system and check airway, breathing, circulation, consciousness, pain and immediate safety concerns. [1]
Why it matters Arrival order and an earlier triage category do not reflect all current risk.
3
Escalate change
Notify the appropriate clinician and move to a monitored or resuscitation area when indicated; use emergency response for instability. [1]
Why it matters Time-critical illness can become more apparent while the person is waiting.
4
Keep the waiting plan safe
Document repeat observations, red flags and the next review; provide clear instructions for seeking help. [1]
Why it matters A waiting patient still needs a plan for surveillance and deterioration.

What to look for next

Track effort and alertness while arranging review. Recheck symptoms and observations at the required interval or sooner for change; communicate every meaningful acuity increase.

Avoid this shortcut

Do not use the original queue position to justify delay. Do not rely on appearance, arrival order or an old score to dismiss new deterioration.

A clear way to hand it over

“I am calling about this new concern: a waiting patient’s breathing changes. The key findings are __, starting at __. Baseline and relevant medicines/procedures are __. I have __. My assessment is __, and I need __ by __. Current response and outstanding actions are __.”

Use your facility's handover format; fill in the actual findings and times.

In plain English Triage prioritizes care by clinical urgency, not by who arrived first.

Sources behind the actions 2 primary references

WHO · Medical emergency and trauma care checklists
Patient-first assessment and recognition of life-threatening changes.
NICE · CG50: Recognising and responding to inpatient deterioration
Escalate using both physiological changes and clinical concern; emergencies bypass a routine graded response.

Links and relevant guidance checked October 7, 2026. Publication dates differ; local requirements may differ. These original cases do not imply endorsement by the source organizations.

Now connect the cues to clinical judgment.
Practise an NGN case · Access depends on your plan.

© 2026 RN Clarity · Lumiere Labs. All rights reserved. Original scenarios and diagrams are for personal learning. Do not copy, screenshot, print, repost, sell or reproduce them without written permission, except where applicable law permits. Cited guidance belongs to its respective owners.

Medication safety

An incorrect identity on a specimen label

Introductory

The situation

Two patients with similar names occupy neighboring spaces. A specimen label is printed before identification and shows the other person’s details. The nurse notices the mismatch before collection.

What should catch your attention

Similar names
Preprinted label
Identifier mismatch

Your immediate priority

Stop the collection and use the approved bedside patient-identification and specimen-labeling process.

01Similar names
02Stop the collection and use the approved bedside patient-identification and specimen-labeling process.
03Check response + communicate

Decision pathway · a learning summary, not a substitute for the full clinical plan

What the RN should do—and why

1
Respond to the situation first
Stop the collection and use the approved bedside patient-identification and specimen-labeling process. [1]
Why it matters A name, label or location can be confused, especially when patients have similar details. Resolving the mismatch before care prevents treatment, feeds, tests or records being attached to the wrong person.
2
Pause and verify
Check two approved identifiers, the current order, allergy history, formulation, last dose and the actual medicine supplied. [1]
Why it matters A familiar-looking package or copied list cannot establish the right medicine for this person.
3
Clarify with the team
Contact the prescriber and pharmacist about the discrepancy. Explain urgent omitted-dose risks and obtain a documented safe plan. [1]
Why it matters Both giving the wrong medicine and delaying a time-critical medicine can harm the patient.
4
Close the loop
Record the resolved order, administration decision and monitoring plan; tell the receiving team about any remaining uncertainty. [1]
Why it matters A corrected chart must reach the bedside and the next handover to prevent repetition.

What to look for next

Check the corrected sample reaches the correct record. Watch for adverse effects or effects of a delayed dose according to the medicine. Escalate any deterioration rather than wait for routine pharmacy review.

Avoid this shortcut

Do not relabel an uncertain already-collected specimen by guessing. Do not guess a dose, crush an unsuitable formulation or silently copy conflicting medication lists.

A clear way to hand it over

“I am calling about this new concern: an incorrect identity on a specimen label. The key findings are __, starting at __. Baseline and relevant medicines/procedures are __. I have __. My assessment is __, and I need __ by __. Current response and outstanding actions are __.”

Use your facility's handover format; fill in the actual findings and times.

In plain English Reconciliation means comparing medicine lists and resolving differences.

Sources behind the actions 3 primary references

WHO · Patient identification: Patient Safety Solutions, May 2007
Verify patient identity using at least two identifiers before care; room or cot position is not an identifier.
NICE · NG5: Medicines optimisation
Reconciliation, medicine safety, communication and individual review.
NICE · CG183: Drug allergy—recommendations
Confirm and document allergy history before drug administration; distinguish allergy from other adverse reactions.

Links and relevant guidance checked October 7, 2026. Publication dates differ; local requirements may differ. These original cases do not imply endorsement by the source organizations.

Now connect the cues to clinical judgment.
Practise an NGN case · Access depends on your plan.

Communication & discharge

A discharge sheet the patient cannot read

Introductory

The situation

A patient with limited English is ready for discharge after assessment of a minor injury. The written plan is only in English and includes return precautions and medicine timing. They can repeat the medicine name but not when to seek help.

What should catch your attention

Inaccessible written plan
Partial understanding
Important warning signs

Your immediate priority

Use a qualified interpreter and teach-back for medicine use and return precautions before discharge.

01Inaccessible written plan
02Use a qualified interpreter and teach-back for medicine use and return precautions before discharge.
03Check response + communicate

Decision pathway · a learning summary, not a substitute for the full clinical plan

What the RN should do—and why

1
Respond to the situation first
Use a qualified interpreter and teach-back for medicine use and return precautions before discharge. [1]
Why it matters Agreement or a smile does not demonstrate understanding of a treatment plan.
2
Make the explanation accessible
Ask the person’s preferred language and communication needs. Use a qualified interpreter for clinical decisions when needed. [1]
Why it matters Agreement or a smile does not demonstrate understanding of a treatment plan.
3
Use a small teach-back
Explain one important step in plain language and ask the person to show or describe it in their own words. [1]
Why it matters This tests how clearly we explained the task without making the person feel examined.
4
Repair the gap
Rephrase, demonstrate and repeat the check. Provide an accessible written plan and a named contact for problems. [1]
Why it matters A usable plan supports safer decisions after the nurse is no longer beside the patient.

What to look for next

Confirm a practical contact and follow-up plan. Confirm the person can identify the next step and warning signs. Resolve missing equipment, support or follow-up before an unsafe discharge proceeds.

Avoid this shortcut

Do not treat a signature as evidence that the instructions were understood. Do not rely on children to interpret or label a person noncompliant because of a language barrier.

A clear way to hand it over

“I am calling about this new concern: a discharge sheet the patient cannot read. The key findings are __, starting at __. Baseline and relevant medicines/procedures are __. I have __. My assessment is __, and I need __ by __. Current response and outstanding actions are __.”

Use your facility's handover format; fill in the actual findings and times.

In plain English Teach-back asks the person to explain the plan so staff can check their explanation.

Sources behind the actions 2 primary references

AHRQ · Teach-back: patient and family engagement
Check the clarity of an explanation by asking patients to describe the plan in their own words.
US HHS Office of Minority Health · National CLAS Standards: communication and language assistance
Competent language assistance; avoid using untrained people or children as interpreters.

Links and relevant guidance checked October 7, 2026. Publication dates differ; local requirements may differ. These original cases do not imply endorsement by the source organizations.

Now connect the cues to clinical judgment.
Practise an NGN case · Access depends on your plan.

Limb perfusion emergency

Pain persists after a splint is fitted

Introductory

The situation

A patient with a forearm fracture says the new splint feels tight. Finger sensation has changed and pain is increasing. The fingers still have a pulse and the discharge paperwork is ready.

What should catch your attention

New tightness
Altered sensation
Increasing pain

Your immediate priority

Stop discharge, check neurovascular status and obtain urgent splint and orthopedic review.

01New tightness
02Stop discharge, check neurovascular status and obtain urgent splint and orthopedic review.
03Check response + communicate

Decision pathway · a learning summary, not a substitute for the full clinical plan

What the RN should do—and why

1
Respond to the situation first
Stop discharge, check neurovascular status and obtain urgent splint and orthopedic review. [1]
Why it matters High pressure inside a closed muscle space can reduce tissue perfusion before a pulse disappears.
2
Recognize disproportionate findings
Check increasing pain, pain on passive stretch, tense swelling, sensation and movement; compare with previous findings. [1]
Why it matters High pressure inside a closed muscle space can reduce tissue perfusion before a pulse disappears.
3
Escalate and remove external constriction safely
Call the surgical team immediately and follow the trained pathway for releasing constrictive dressings or casts. Keep the limb positioned per the emergency plan. [1]
Why it matters Waiting for absent pulses can miss the window to protect muscle and nerves.
4
Prepare definitive treatment
Keep serial neurovascular records, arrange ordered monitoring and prepare urgent transfer or surgery as directed. [1]
Why it matters Definitive decompression is a surgical decision; pain treatment alone cannot reverse the pressure.

What to look for next

Reassess after any trained release of external constriction. Repeat pain, sensation, movement and perfusion assessments while help arrives; keep escalating worsening findings.

Avoid this shortcut

Do not dismiss pain because a pulse is present. Do not reassure because a pulse is present or simply give more analgesia and wait.

A clear way to hand it over

“I am calling about this new concern: pain persists after a splint is fitted. The key findings are __, starting at __. Baseline and relevant medicines/procedures are __. I have __. My assessment is __, and I need __ by __. Current response and outstanding actions are __.”

Use your facility's handover format; fill in the actual findings and times.

In plain English A compartment is a closed space around a group of muscles.

Sources behind the actions 1 primary references

British Orthopaedic Association · BOASt: Compartment syndrome of the extremities (revised July 2025)
Disproportionate pain, serial neurovascular assessment, release of constrictive dressings and immediate surgery after diagnosis.

Links and relevant guidance checked October 7, 2026. Publication dates differ; local requirements may differ. These original cases do not imply endorsement by the source organizations.

Now connect the cues to clinical judgment.
Practise an NGN case · Access depends on your plan.

Medication safety

The home medicine list misses an anticoagulant

Introductory

The situation

An older patient brings blister packs but the intake record lists only tablets remembered by a relative. A pharmacy label shows an anticoagulant absent from the chart. The patient may need a procedure.

What should catch your attention

Incomplete history
Anticoagulant in pack
Possible procedure

Your immediate priority

Reconcile the actual medicine and last dose promptly with the patient, pharmacy and clinician.

01Incomplete history
02Reconcile the actual medicine and last dose promptly with the patient, pharmacy and clinician.
03Check response + communicate

Decision pathway · a learning summary, not a substitute for the full clinical plan

What the RN should do—and why

1
Respond to the situation first
Reconcile the actual medicine and last dose promptly with the patient, pharmacy and clinician. [1]
Why it matters A familiar-looking package or copied list cannot establish the right medicine for this person.
2
Pause and verify
Check two approved identifiers, the current order, allergy history, formulation, last dose and the actual medicine supplied. [1]
Why it matters A familiar-looking package or copied list cannot establish the right medicine for this person.
3
Clarify with the team
Contact the prescriber and pharmacist about the discrepancy. Explain urgent omitted-dose risks and obtain a documented safe plan. [1]
Why it matters Both giving the wrong medicine and delaying a time-critical medicine can harm the patient.
4
Close the loop
Record the resolved order, administration decision and monitoring plan; tell the receiving team about any remaining uncertainty. [1]
Why it matters A corrected chart must reach the bedside and the next handover to prevent repetition.

What to look for next

Ensure the procedure team receives the corrected list. Watch for adverse effects or effects of a delayed dose according to the medicine. Escalate any deterioration rather than wait for routine pharmacy review.

Avoid this shortcut

Do not rely only on recall when another reliable source is available. Do not guess a dose, crush an unsuitable formulation or silently copy conflicting medication lists.

A clear way to hand it over

“I am calling about this new concern: the home medicine list misses an anticoagulant. The key findings are __, starting at __. Baseline and relevant medicines/procedures are __. I have __. My assessment is __, and I need __ by __. Current response and outstanding actions are __.”

Use your facility's handover format; fill in the actual findings and times.

In plain English Reconciliation means comparing medicine lists and resolving differences.

Sources behind the actions 2 primary references

NICE · NG5: Medicines optimisation
Reconciliation, medicine safety, communication and individual review.
NICE · CG183: Drug allergy—recommendations
Confirm and document allergy history before drug administration; distinguish allergy from other adverse reactions.

Links and relevant guidance checked October 7, 2026. Publication dates differ; local requirements may differ. These original cases do not imply endorsement by the source organizations.

Now connect the cues to clinical judgment.
Practise an NGN case · Access depends on your plan.

Hydration & frailty

Vomiting and dizziness after several days of poor intake

Intermediate

The situation

A patient has vomiting and cannot keep drinks down. They become dizzy when standing. They also have chronic kidney disease and are taking a diuretic, so fluid and medicine decisions need individual review.

What should catch your attention

Ongoing losses
Postural symptoms
Renal comorbidity

Your immediate priority

Assess perfusion and arrange a prescribed replacement and medication plan suitable for kidney function.

01Ongoing losses
02Assess perfusion and arrange a prescribed replacement and medication plan suitable for kidney function.
03Check response + communicate

Decision pathway · a learning summary, not a substitute for the full clinical plan

What the RN should do—and why

1
Respond to the situation first
Assess perfusion and arrange a prescribed replacement and medication plan suitable for kidney function. [1]
Why it matters Reduced intake can have treatable causes, while symptoms alone do not measure the deficit.
2
Measure the change
Check intake, urine, weight, vital signs, mouth comfort and recent losses; compare with baseline. [1]
Why it matters Reduced intake can have treatable causes, while symptoms alone do not measure the deficit.
3
Match support to safety
Offer accessible oral fluids only when swallowing and the care plan permit. Seek a prescribed replacement plan when intake is inadequate or circulation is unstable. [1]
Why it matters Heart or kidney disease may limit how much fluid can safely be given.
4
Check response
Record all intake and losses, provide mouth care and review the cause with the team. [1]
Why it matters Replacement without addressing access, nausea, medicines or illness may not solve the problem.

What to look for next

Watch urine, pressure and breathing after replacement. Review urine, alertness, breathing and weight trends. Escalate shock, worsening confusion or signs of fluid overload.

Avoid this shortcut

Do not give a large standard volume without reassessment. Do not force oral drinks with unsafe swallowing or automatically give large fluid volumes.

A clear way to hand it over

“I am calling about this new concern: vomiting and dizziness after several days of poor intake. The key findings are __, starting at __. Baseline and relevant medicines/procedures are __. I have __. My assessment is __, and I need __ by __. Current response and outstanding actions are __.”

Use your facility's handover format; fill in the actual findings and times.

In plain English Fluid balance compares fluid entering and leaving the body.

Sources behind the actions 1 primary references

NICE · CG174: Intravenous fluid therapy in adults
Individual fluid assessment and repeated review of response and comorbid risks.

Links and relevant guidance checked October 7, 2026. Publication dates differ; local requirements may differ. These original cases do not imply endorsement by the source organizations.

Now connect the cues to clinical judgment.
Practise an NGN case · Access depends on your plan.

Acute airflow obstruction

An asthma patient becomes quiet

Intermediate

The situation

A patient initially wheezes loudly but now has little audible air movement and struggles to finish words. They are tired despite the first prescribed bronchodilator treatment. The lower wheeze volume is called improvement.

What should catch your attention

Poor air entry
Limited speech
Fatigue after treatment

Your immediate priority

Escalate urgently for severe asthma and ventilatory support assessment.

01Poor air entry
02Escalate urgently for severe asthma and ventilatory support assessment.
03Check response + communicate

Decision pathway · a learning summary, not a substitute for the full clinical plan

What the RN should do—and why

1
Respond to the situation first
Escalate urgently for severe asthma and ventilatory support assessment. [1]
Why it matters A quieter chest or reduced effort can indicate exhaustion, not improvement.
2
Assess severity
Check speech, breathing effort, rate, consciousness, oxygenation and air entry; obtain peak flow only when suitable and safe. [1]
Why it matters A quieter chest or reduced effort can indicate exhaustion, not improvement.
3
Deliver authorized treatment
Prepare protocol-directed bronchodilators, oxygen and other prescribed acute treatment; call respiratory or resuscitation help for severe features. [1]
Why it matters Relieving bronchospasm and addressing inflammation are part of the medical pathway.
4
Reassess promptly
Compare symptoms, air entry, effort and observations after treatment and prepare escalation if response is poor. [1]
Why it matters An initial dose does not establish recovery or readiness for discharge.

What to look for next

Trend effort and consciousness, not just wheeze loudness. Watch fatigue, altered consciousness, worsening oxygen need and poor response. Confirm an accessible relapse and medicine plan after stabilization.

Avoid this shortcut

Do not equate a quieter chest with recovery. Do not assume absence of wheeze excludes danger or make a severely distressed patient perform a lengthy test.

A clear way to hand it over

“I am calling about this new concern: an asthma patient becomes quiet. The key findings are __, starting at __. Baseline and relevant medicines/procedures are __. I have __. My assessment is __, and I need __ by __. Current response and outstanding actions are __.”

Use your facility's handover format; fill in the actual findings and times.

In plain English Bronchospasm means tightening around the airways that makes airflow difficult.

Sources behind the actions 2 primary references

BTS / NICE / SIGN · Acute asthma management pathway
Separate adult and child acute-attack pathways; exhaustion and poor air movement require escalation.
British Thoracic Society · Oxygen use in adults in healthcare and emergency settings
Targeted oxygen therapy, urgent blood gases for hypercapnia risk and oxygen during critical illness without unsafe withholding.

Links and relevant guidance checked October 7, 2026. Publication dates differ; local requirements may differ. These original cases do not imply endorsement by the source organizations.

Now connect the cues to clinical judgment.
Practise an NGN case · Access depends on your plan.

Burn & inhalation risk

Smoke exposure with a small visible burn

Intermediate

The situation

A patient escapes a room fire with a small arm burn, hoarse voice and soot around the mouth. The skin injury looks minor. Their breathing symptoms are worsening during observation.

What should catch your attention

Enclosed-space smoke
Voice change
Worsening breathing

Your immediate priority

Prioritize airway and inhalation-injury review and communicate the exposure to the airway and burn teams.

01Enclosed-space smoke
02Prioritize airway and inhalation-injury review and communicate the exposure to the airway and burn teams.
03Check response + communicate

Decision pathway · a learning summary, not a substitute for the full clinical plan

What the RN should do—and why

1
Respond to the situation first
Prioritize airway and inhalation-injury review and communicate the exposure to the airway and burn teams. [1]
Why it matters Staff protection and removal of ongoing exposure come before detailed wound description.
2
Stop exposure safely
Ensure scene safety, stop the burning process and provide appropriate first aid while assessing airway and circulation. [1]
Why it matters Staff protection and removal of ongoing exposure come before detailed wound description.
3
Escalate important features
Report smoke exposure, airway symptoms, burn depth and location, comorbidity and circulation; follow burn-team referral criteria. [1]
Why it matters Inhalation injury and significant burns can deteriorate despite a relatively reassuring skin appearance.
4
Protect and monitor
Use clean appropriate coverings, prevent hypothermia, and prepare prescribed pain and fluid plans with reassessment. [1]
Why it matters Extensive cooling, unplanned creams or indiscriminate fluids can add harm.

What to look for next

Watch for delayed airway and respiratory decline. Watch breathing, perfusion, temperature and urine trends; delayed respiratory symptoms need urgent reassessment.

Avoid this shortcut

Do not let burn size alone determine urgency. Do not use ice, remove stuck clothing forcibly or assume the visible skin injury measures the entire risk.

A clear way to hand it over

“I am calling about this new concern: smoke exposure with a small visible burn. The key findings are __, starting at __. Baseline and relevant medicines/procedures are __. I have __. My assessment is __, and I need __ by __. Current response and outstanding actions are __.”

Use your facility's handover format; fill in the actual findings and times.

In plain English Inhalation injury is damage caused by breathing smoke, heat or chemicals.

Sources behind the actions 2 primary references

American Burn Association · Burn patient referral guidelines
Inhalation concerns and indications for urgent burn-specialist assessment.
WHO · Medical emergency and trauma care checklists
Patient-first assessment and recognition of life-threatening changes.

Links and relevant guidance checked October 7, 2026. Publication dates differ; local requirements may differ. These original cases do not imply endorsement by the source organizations.

Now connect the cues to clinical judgment.
Practise an NGN case · Access depends on your plan.

Self-harm & immediate safety

Self-harm disclosure during wound care

Intermediate

The situation

A patient being treated for a cut says they intended to die and may try again when leaving. Their wound is physically minor, but they are distressed and ask not to be left alone.

What should catch your attention

Suicidal intent
Future risk
Expressed need for support

Your immediate priority

Arrange immediate safety and mental-health assessment while continuing physical care, using the least restrictive lawful approach.

01Suicidal intent
02Arrange immediate safety and mental-health assessment while continuing physical care, using the least restrictive lawful approach.
03Check response + communicate

Decision pathway · a learning summary, not a substitute for the full clinical plan

What the RN should do—and why

1
Respond to the situation first
Arrange immediate safety and mental-health assessment while continuing physical care, using the least restrictive lawful approach. [1]
Why it matters A compassionate conversation and physical assessment identify immediate needs without relying on stereotypes.
2
Listen and assess immediate needs
Speak privately and calmly, ask directly about current safety and intent, and assess injury, poisoning or medical instability. [1]
Why it matters A compassionate conversation and physical assessment identify immediate needs without relying on stereotypes.
3
Arrange safe support
Call the appropriate emergency/mental-health team and use the agreed observation and environmental-safety plan while preserving dignity. [1]
Why it matters Immediate risk requires support and a safe handover rather than leaving the person unsupported.
4
Build a collaborative next plan
Support specialist psychosocial assessment and a collaborative safety/follow-up plan, explaining confidentiality limits and local law. [1]
Why it matters Care should address needs and circumstances, not classify a person by a prediction score alone.

What to look for next

Check the agreed observation and psychosocial assessment actually occur. Reassess immediate safety and physical condition and ensure responsibility is clearly handed over.

Avoid this shortcut

Do not discharge solely because the wound is small. Do not promise absolute secrecy, use a risk score alone to decide discharge or describe the person as attention-seeking.

A clear way to hand it over

“I am calling about this new concern: self-harm disclosure during wound care. The key findings are __, starting at __. Baseline and relevant medicines/procedures are __. I have __. My assessment is __, and I need __ by __. Current response and outstanding actions are __.”

Use your facility's handover format; fill in the actual findings and times.

In plain English A safety plan is an agreed set of coping steps, support contacts and actions for a crisis.

Sources behind the actions 1 primary references

NICE · NG225: Self-harm assessment and care
Compassionate physical/psychosocial assessment, safety planning and avoiding prediction scores as sole decisions.

Links and relevant guidance checked October 7, 2026. Publication dates differ; local requirements may differ. These original cases do not imply endorsement by the source organizations.

Now connect the cues to clinical judgment.
Practise an NGN case · Access depends on your plan.

Severe allergic reaction

An antibiotic reaction starts in the assessment bay

Intermediate

The situation

During a first antibiotic dose, a patient develops throat tightness, wheeze and dizziness. No rash is visible. Staff hesitate because the allergy field was blank on arrival.

What should catch your attention

Exposure-related onset
Airway symptoms
Circulatory symptoms

Your immediate priority

Stop the trigger and activate the authorized anaphylaxis response immediately.

01Exposure-related onset
02Stop the trigger and activate the authorized anaphylaxis response immediately.
03Check response + communicate

Decision pathway · a learning summary, not a substitute for the full clinical plan

What the RN should do—and why

1
Respond to the situation first
Stop the trigger and activate the authorized anaphylaxis response immediately. [1]
Why it matters A rash may be absent; life-threatening allergy is identified by organ compromise.
2
Recognize severe compromise
Stop the suspected trigger when possible; call emergency help for sudden airway, breathing or circulation problems after an exposure. [1]
Why it matters A rash may be absent; life-threatening allergy is identified by organ compromise.
3
Use the emergency protocol
Give intramuscular epinephrine/adrenaline under the authorized pathway, support airway and oxygenation, and position safely without standing the patient. [1]
Why it matters Epinephrine addresses dangerous airway and circulatory effects; antihistamines do not replace it.
4
Prepare continued care
Arrange ordered fluids, repeat treatment and observation; report the exposure, symptoms and treatment times. [1]
Why it matters Symptoms can persist or recur, requiring monitored follow-up rather than immediate reassurance.

What to look for next

Record the drug, timing and response for allergy follow-up. Continuously review breathing, perfusion and response. Escalate ongoing compromise and arrange allergy documentation and follow-up after stabilization.

Avoid this shortcut

Do not wait for hives or a prior documented allergy. Do not wait for a rash, use antihistamines as sole emergency treatment or let a hypotensive person walk.

A clear way to hand it over

“I am calling about this new concern: an antibiotic reaction starts in the assessment bay. The key findings are __, starting at __. Baseline and relevant medicines/procedures are __. I have __. My assessment is __, and I need __ by __. Current response and outstanding actions are __.”

Use your facility's handover format; fill in the actual findings and times.

In plain English Anaphylaxis is a serious systemic allergic reaction; adrenaline and epinephrine are two names for the same medicine.

Sources behind the actions 1 primary references

Resuscitation Council UK · Emergency treatment of anaphylactic reactions
IM adrenaline/epinephrine first-line, positioning, emergency support and observation; antihistamines do not treat airway or circulatory compromise.

Links and relevant guidance checked October 7, 2026. Publication dates differ; local requirements may differ. These original cases do not imply endorsement by the source organizations.

Now connect the cues to clinical judgment.
Practise an NGN case · Access depends on your plan.

Major trauma & hemorrhage

A one-sided weak leg after a fall

Difficult

The situation

A person arrives after a fall from height with back pain and new leg weakness. They can answer questions but are asked to walk to another bay. Their breathing and circulation are stable at present.

What should catch your attention

Trauma mechanism
New weakness
Potential spinal injury

Your immediate priority

Avoid an unplanned walking transfer and arrange the trauma and spinal assessment pathway.

01Trauma mechanism
02Avoid an unplanned walking transfer and arrange the trauma and spinal assessment pathway.
03Check response + communicate

Decision pathway · a learning summary, not a substitute for the full clinical plan

What the RN should do—and why

1
Respond to the situation first
Avoid an unplanned walking transfer and arrange the trauma and spinal assessment pathway. [1]
Why it matters Immediately threatening problems must be addressed before completing a long injury history.
2
Use the trauma sequence
Call the trauma response and assess catastrophic bleeding, airway, breathing, circulation and neurological status within the trained pathway. [1]
Why it matters Immediately threatening problems must be addressed before completing a long injury history.
3
Support safe interventions
Control external bleeding with trained measures, protect suspected spinal injury and prepare ordered resuscitation and imaging or surgery. [1]
Why it matters Several injuries can coexist; visible bleeding may not be the only threat.
4
Prevent secondary harm
Maintain warmth, record trends and intervention times, and coordinate transfer with the trauma team. [1]
Why it matters Cold, hypoperfusion and delays can worsen injury and bleeding.

What to look for next

Repeat neurological findings after any necessary movement. Repeat the assessment after every intervention and transfer; escalation continues if perfusion, ventilation or consciousness deteriorates.

Avoid this shortcut

Do not test walking simply because the person is conscious. Do not move a potentially unstable injured person casually or delay lifesaving airway care solely to maintain immobilization.

A clear way to hand it over

“I am calling about this new concern: a one-sided weak leg after a fall. The key findings are __, starting at __. Baseline and relevant medicines/procedures are __. I have __. My assessment is __, and I need __ by __. Current response and outstanding actions are __.”

Use your facility's handover format; fill in the actual findings and times.

In plain English Secondary injury is additional harm caused after the original trauma, such as from low oxygen or poor perfusion.

Sources behind the actions 2 primary references

NICE · NG39: Major trauma assessment and management
Urgent trauma assessment, bleeding and airway/circulatory support.
NICE · NG41: Spinal injury assessment
Neurological assessment and trained safe handling of suspected spinal injury.

Links and relevant guidance checked October 7, 2026. Publication dates differ; local requirements may differ. These original cases do not imply endorsement by the source organizations.

Now connect the cues to clinical judgment.
Practise an NGN case · Access depends on your plan.

Infection & shock

Possible infection without fever

Difficult

The situation

A patient receiving immune-suppressing therapy has confusion, faster breathing and falling pressure. Temperature is normal. A relative says they deteriorated over a few hours and took fever-reducing medicine earlier.

What should catch your attention

Rapid change
Immune suppression
Poor perfusion

Your immediate priority

Activate sepsis and emergency review despite the absent fever.

01Rapid change
02Activate sepsis and emergency review despite the absent fever.
03Check response + communicate

Decision pathway · a learning summary, not a substitute for the full clinical plan

What the RN should do—and why

1
Respond to the situation first
Activate sepsis and emergency review despite the absent fever. [1]
Why it matters Delay can allow poor organ perfusion to worsen before the diagnosis is fully confirmed.
2
Escalate early
Assess airway, breathing, circulation and mental state; activate the local emergency or sepsis response for shock or rapid decline. [1]
Why it matters Delay can allow poor organ perfusion to worsen before the diagnosis is fully confirmed.
3
Support the prescribed bundle
Prepare cultures and lactate testing, urgent antimicrobials and individualized fluid or vasopressor treatment as ordered; do not delay urgent therapy for a difficult sample. [1]
Why it matters Identifying infection and supporting circulation address different parts of the same emergency.
4
Reassess after each step
Trend blood pressure, breathing, alertness, urine and response to treatment; report overload or persistent poor perfusion. [1]
Why it matters Fluids and medicines must be adjusted to response and comorbidity, rather than repeated automatically.

What to look for next

Track shock and the response to individualized treatment. Continue close observations through transfer and handover. Persistent shock, rising support needs or reduced consciousness requires further immediate escalation.

Avoid this shortcut

Do not use temperature alone to rule out severe infection. Do not wait for fever, laboratory confirmation or a score threshold when clinical shock is evident.

A clear way to hand it over

“I am calling about this new concern: possible infection without fever. The key findings are __, starting at __. Baseline and relevant medicines/procedures are __. I have __. My assessment is __, and I need __ by __. Current response and outstanding actions are __.”

Use your facility's handover format; fill in the actual findings and times.

In plain English Perfusion means blood flow delivering oxygen to organs.

Sources behind the actions 2 primary references

SCCM / ESICM · Surviving Sepsis Campaign adult guidelines—2026
Immediate emergency response, cultures/lactate, prompt antimicrobials in shock and individualized resuscitation with reassessment.
NICE · CG50: Recognising and responding to inpatient deterioration
Escalate using both physiological changes and clinical concern; emergencies bypass a routine graded response.

Links and relevant guidance checked October 7, 2026. Publication dates differ; local requirements may differ. These original cases do not imply endorsement by the source organizations.

Now connect the cues to clinical judgment.
Practise an NGN case · Access depends on your plan.

Early-pregnancy emergency

Early pregnancy with faintness and shoulder pain

Difficult

The situation

A patient with delayed menstruation reports abdominal pain, light spotting and shoulder-tip pain. They nearly faint while standing. Pregnancy testing and ultrasound have not yet been completed.

What should catch your attention

Possible pregnancy
Shoulder-tip pain
Near-collapse

Your immediate priority

Arrange urgent obstetric and circulatory assessment for possible internal bleeding.

01Possible pregnancy
02Arrange urgent obstetric and circulatory assessment for possible internal bleeding.
03Check response + communicate

Decision pathway · a learning summary, not a substitute for the full clinical plan

What the RN should do—and why

1
Respond to the situation first
Arrange urgent obstetric and circulatory assessment for possible internal bleeding. [1]
Why it matters Ectopic pregnancy may occur without a known positive pregnancy test or heavy visible bleeding.
2
Recognize the risk
Assess pregnancy possibility, pain, bleeding, faintness, pulse and pressure while maintaining privacy. [1]
Why it matters Ectopic pregnancy may occur without a known positive pregnancy test or heavy visible bleeding.
3
Call and prepare
Activate urgent obstetric or emergency review for instability; prepare access, ordered testing and resuscitation. [1]
Why it matters Internal bleeding can be severe, requiring rapid specialist assessment and treatment.
4
Keep the pathway coordinated
Report last menstrual period, relevant history and trends; prepare imaging or surgery as directed. [1]
Why it matters A single symptom or test does not safely establish location or viability of a pregnancy.

What to look for next

Monitor perfusion while diagnostics and resuscitation proceed. Trend perfusion, pain and consciousness during evaluation; new shoulder-tip pain, collapse or increasing instability warrants immediate escalation.

Avoid this shortcut

Do not reassure from the small amount of vaginal bleeding. Do not reassure from light vaginal bleeding or delay shock care while awaiting a pregnancy result.

A clear way to hand it over

“I am calling about this new concern: early pregnancy with faintness and shoulder pain. The key findings are __, starting at __. Baseline and relevant medicines/procedures are __. I have __. My assessment is __, and I need __ by __. Current response and outstanding actions are __.”

Use your facility's handover format; fill in the actual findings and times.

In plain English Ectopic means a pregnancy is implanted outside the uterine cavity, most often in a fallopian tube.

Sources behind the actions 2 primary references

NICE · NG126: Ectopic pregnancy assessment and management
Urgent assessment for concerning early-pregnancy pain, bleeding or instability.
NICE · NG24: Blood transfusion (updated February 2026)
General blood-product decisions, compatibility and patient monitoring; major bleeding follows a separate emergency pathway.

Links and relevant guidance checked October 7, 2026. Publication dates differ; local requirements may differ. These original cases do not imply endorsement by the source organizations.

Now connect the cues to clinical judgment.
Practise an NGN case · Access depends on your plan.

Head injury & anticoagulants

A previously assessed head injury worsens

Difficult

The situation

A patient under head-injury observation develops worsening headache and repeated vomiting. They take an anticoagulant. An earlier scan was reassuring, but their neurological observations now differ from arrival.

What should catch your attention

New vomiting
Changed observations
Anticoagulant exposure

Your immediate priority

Request immediate reassessment and report the trend rather than relying on the earlier scan alone.

01New vomiting
02Request immediate reassessment and report the trend rather than relying on the earlier scan alone.
03Check response + communicate

Decision pathway · a learning summary, not a substitute for the full clinical plan

What the RN should do—and why

1
Respond to the situation first
Request immediate reassessment and report the trend rather than relying on the earlier scan alone. [1]
Why it matters A seemingly minor fall can cause serious injury, especially with anticoagulant use.
2
Assess safely
Check airway, breathing, circulation, consciousness, pupils and injury history; avoid unnecessary movement if spinal injury is possible. [1]
Why it matters A seemingly minor fall can cause serious injury, especially with anticoagulant use.
3
Arrange urgent review
Report the mechanism, loss of consciousness, vomiting, neurological changes and anticoagulant details; follow imaging and observation orders. [1]
Why it matters Treatment decisions depend on symptoms, risk factors and examination, not the size of a visible bump.
4
Track the trend
Record neurological observations and times, provide the prescribed monitoring and escalate deterioration immediately. [1]
Why it matters A change after an initially reassuring assessment may indicate evolving injury.

What to look for next

Continue close neurological and airway observation. Watch for worsening headache, vomiting, confusion, weakness or reduced consciousness. A previous normal assessment does not end monitoring.

Avoid this shortcut

Do not dismiss evolving symptoms because imaging was previously normal. Do not let an unexplained fall or increasing sleepiness pass without review.

A clear way to hand it over

“I am calling about this new concern: a previously assessed head injury worsens. The key findings are __, starting at __. Baseline and relevant medicines/procedures are __. I have __. My assessment is __, and I need __ by __. Current response and outstanding actions are __.”

Use your facility's handover format; fill in the actual findings and times.

In plain English Neurological observations check how the brain and nerves are functioning.

Sources behind the actions 2 primary references

NICE · NG232: Head injury assessment and management
Age-specific assessment, neurological deterioration and anticoagulant-related risk.
NICE · CG50: Recognising and responding to inpatient deterioration
Escalate using both physiological changes and clinical concern; emergencies bypass a routine graded response.

Links and relevant guidance checked October 7, 2026. Publication dates differ; local requirements may differ. These original cases do not imply endorsement by the source organizations.

Now connect the cues to clinical judgment.
Practise an NGN case · Access depends on your plan.

Cardiac ischemia

Chest discomfort described as indigestion

Difficult

The situation

A patient with diabetes reports upper abdominal pressure, nausea and sweating after exertion. They do not use the words chest pain. Their pressure is falling and they look unwell.

What should catch your attention

Exertional pressure
Sweating
Circulatory decline

Your immediate priority

Use the urgent ACS assessment pathway and report the atypical symptom description.

01Exertional pressure
02Use the urgent ACS assessment pathway and report the atypical symptom description.
03Check response + communicate

Decision pathway · a learning summary, not a substitute for the full clinical plan

What the RN should do—and why

1
Respond to the situation first
Use the urgent ACS assessment pathway and report the atypical symptom description. [1]
Why it matters Heart ischemia does not always present as a classic crushing chest pain.
2
Recognize the pattern
Assess chest discomfort, breathlessness, sweating, nausea and circulation; call urgent clinical help for concerning or unstable symptoms. [1]
Why it matters Heart ischemia does not always present as a classic crushing chest pain.
3
Prepare time-sensitive assessment
Obtain a prompt ECG and ordered tests, monitoring and access using the local ACS pathway. [1]
Why it matters Early ECG and clinical review guide treatment; one normal tracing does not exclude all ACS.
4
Support ordered treatment
Check allergies, bleeding risk, current medicines and hemodynamics before protocol-directed medicines; prepare transfer if required. [1]
Why it matters Antiplatelet, nitrate and reperfusion decisions depend on diagnosis, contraindications and circulation.

What to look for next

Reassess ECG, symptoms and perfusion with the team. Reassess pain, breathing, rhythm and perfusion. Report recurrence or evolving ECG changes even after symptoms settle.

Avoid this shortcut

Do not dismiss the presentation as indigestion without assessment. Do not dismiss symptoms as anxiety, give nitrates despite a contraindication or promise a normal ECG rules out a heart attack.

A clear way to hand it over

“I am calling about this new concern: chest discomfort described as indigestion. The key findings are __, starting at __. Baseline and relevant medicines/procedures are __. I have __. My assessment is __, and I need __ by __. Current response and outstanding actions are __.”

Use your facility's handover format; fill in the actual findings and times.

In plain English Ischemia means tissue is not receiving enough blood and oxygen.

Sources behind the actions 2 primary references

AHA / ACC and collaborating societies · 2025 Acute Coronary Syndromes Guideline
Rapid ACS assessment and diagnostic/treatment pathways; antiplatelet and reperfusion decisions require clinical evaluation.
American Heart Association · Key patient messages: 2025 ACS Guideline
Chest discomfort, breathlessness, sweating and atypical symptoms warrant prompt assessment.

Links and relevant guidance checked October 7, 2026. Publication dates differ; local requirements may differ. These original cases do not imply endorsement by the source organizations.

Now connect the cues to clinical judgment.
Practise an NGN case · Access depends on your plan.

Rhythm & perfusion

A pulseless patient at the entrance

Extremely difficult

The situation

A patient collapses near reception. They are unresponsive, not breathing normally and no pulse is identified by the trained assessment. Staff are trying to find their registration record before calling the response team.

What should catch your attention

Unresponsive collapse
Abnormal breathing
No identified pulse

Your immediate priority

Activate resuscitation, begin CPR and obtain the AED or defibrillator without waiting for registration.

01Unresponsive collapse
02Activate resuscitation, begin CPR and obtain the AED or defibrillator without waiting for registration.
03Check response + communicate

Decision pathway · a learning summary, not a substitute for the full clinical plan

What the RN should do—and why

1
Respond to the situation first
Activate resuscitation, begin CPR and obtain the AED or defibrillator without waiting for registration. [1]
Why it matters The urgency depends on circulation and symptoms, not the monitor label alone.
2
Check patient and rhythm
Assess responsiveness, pulse, pressure, chest symptoms and breathing; verify the rhythm with reliable monitoring. [1]
Why it matters The urgency depends on circulation and symptoms, not the monitor label alone.
3
Call and prepare
Activate emergency help for instability; begin CPR and AED or defibrillator care when indicated and prepare trained cardioversion or pacing support under protocol. [1]
Why it matters Different rhythms and pulse states require different treatments.
4
Review reversible causes
Assist the team with ECG, electrolytes, medicine review and ordered treatment, with continued monitoring. [1]
Why it matters Correcting the rhythm without addressing causes can lead to recurrence.

What to look for next

Continue the resuscitation sequence and relay event times. Trend pulse, pressure, consciousness and ECG after treatment. Report recurrence or post-treatment deterioration immediately.

Avoid this shortcut

Do not delay lifesaving care for administrative details. Do not give a rhythm drug from a monitor label alone or confuse synchronized cardioversion with an unsynchronized shock.

A clear way to hand it over

“I am calling about this new concern: a pulseless patient at the entrance. The key findings are __, starting at __. Baseline and relevant medicines/procedures are __. I have __. My assessment is __, and I need __ by __. Current response and outstanding actions are __.”

Use your facility's handover format; fill in the actual findings and times.

In plain English An arrhythmia is an abnormal rhythm; perfusion describes whether the circulation supports the organs.

Sources behind the actions 1 primary references

AHA · 2025 Adult Advanced Life Support
Pulse and perfusion assessment, rhythm-directed rescue and resuscitation.

Links and relevant guidance checked October 7, 2026. Publication dates differ; local requirements may differ. These original cases do not imply endorsement by the source organizations.

Now connect the cues to clinical judgment.
Practise an NGN case · Access depends on your plan.

Severe allergic reaction

A severe allergic reaction with beta-blocker use

Extremely difficult

The situation

A patient develops sudden airway swelling and shock after a sting. They take a beta-blocker and do not improve adequately after initial protocol treatment. Their family asks for antihistamine instead.

What should catch your attention

Airway swelling
Shock
Incomplete treatment response

Your immediate priority

Continue the emergency anaphylaxis pathway and request expert assessment for refractory reaction, reporting beta-blocker use.

01Airway swelling
02Continue the emergency anaphylaxis pathway and request expert assessment for refractory reaction, reporting beta-blocker use.
03Check response + communicate

Decision pathway · a learning summary, not a substitute for the full clinical plan

What the RN should do—and why

1
Respond to the situation first
Continue the emergency anaphylaxis pathway and request expert assessment for refractory reaction, reporting beta-blocker use. [1]
Why it matters A rash may be absent; life-threatening allergy is identified by organ compromise.
2
Recognize severe compromise
Stop the suspected trigger when possible; call emergency help for sudden airway, breathing or circulation problems after an exposure. [1]
Why it matters A rash may be absent; life-threatening allergy is identified by organ compromise.
3
Use the emergency protocol
Give intramuscular epinephrine/adrenaline under the authorized pathway, support airway and oxygenation, and position safely without standing the patient. [1]
Why it matters Epinephrine addresses dangerous airway and circulatory effects; antihistamines do not replace it.
4
Prepare continued care
Arrange ordered fluids, repeat treatment and observation; report the exposure, symptoms and treatment times. [1]
Why it matters Symptoms can persist or recur, requiring monitored follow-up rather than immediate reassurance.

What to look for next

Monitor continuously and prepare ordered advanced treatment. Continuously review breathing, perfusion and response. Escalate ongoing compromise and arrange allergy documentation and follow-up after stabilization.

Avoid this shortcut

Do not substitute antihistamine for circulation and airway treatment. Do not wait for a rash, use antihistamines as sole emergency treatment or let a hypotensive person walk.

A clear way to hand it over

“I am calling about this new concern: a severe allergic reaction with beta-blocker use. The key findings are __, starting at __. Baseline and relevant medicines/procedures are __. I have __. My assessment is __, and I need __ by __. Current response and outstanding actions are __.”

Use your facility's handover format; fill in the actual findings and times.

In plain English Anaphylaxis is a serious systemic allergic reaction; adrenaline and epinephrine are two names for the same medicine.

Sources behind the actions 1 primary references

Resuscitation Council UK · Emergency treatment of anaphylactic reactions
IM adrenaline/epinephrine first-line, positioning, emergency support and observation; antihistamines do not treat airway or circulatory compromise.

Links and relevant guidance checked October 7, 2026. Publication dates differ; local requirements may differ. These original cases do not imply endorsement by the source organizations.

Now connect the cues to clinical judgment.
Practise an NGN case · Access depends on your plan.

Time-critical neurology

Stroke symptoms with an uncertain clock time

Extremely difficult

The situation

A patient wakes with new arm weakness and speech change. The last time known well was before sleep, not the time they woke. They use an anticoagulant and need urgent imaging selection by the stroke team.

What should catch your attention

Wake-up deficit
Uncertain onset
Anticoagulant use

Your immediate priority

Report both discovery time and last known well accurately and activate the stroke pathway.

01Wake-up deficit
02Report both discovery time and last known well accurately and activate the stroke pathway.
03Check response + communicate

Decision pathway · a learning summary, not a substitute for the full clinical plan

What the RN should do—and why

1
Respond to the situation first
Report both discovery time and last known well accurately and activate the stroke pathway. [1]
Why it matters Timing and an accurate baseline affect specialist assessment and potential treatment selection.
2
Record time and findings
Note last known well and new face, arm, speech, vision or balance changes; assess airway, breathing and glucose. [1]
Why it matters Timing and an accurate baseline affect specialist assessment and potential treatment selection.
3
Call the stroke pathway
Arrange immediate stroke-team review and urgent imaging; report anticoagulants, recent procedures and seizure history. [1]
Why it matters Imaging is needed to distinguish causes and guide reperfusion or bleeding management.
4
Protect ongoing care
Keep oral intake paused until an approved swallow assessment; follow ordered pressure, oxygen and transfer plans. [1]
Why it matters Aspiration and inappropriate treatment can add harm while the stroke pathway is underway.

What to look for next

Record changes and protect swallowing during transfer. Trend neurological findings and consciousness, document changes with times and ensure the receiving team knows last known well.

Avoid this shortcut

Do not invent an onset time or assume all wake-up strokes have no treatment options. Do not give food to test swallowing, delay for a complete history or independently lower pressure.

A clear way to hand it over

“I am calling about this new concern: stroke symptoms with an uncertain clock time. The key findings are __, starting at __. Baseline and relevant medicines/procedures are __. I have __. My assessment is __, and I need __ by __. Current response and outstanding actions are __.”

Use your facility's handover format; fill in the actual findings and times.

In plain English Last known well is the last time the person was known to be at their usual neurological baseline.

Sources behind the actions 2 primary references

American Heart Association / American Stroke Association · 2026 Guideline for early management of acute ischemic stroke
Time-sensitive stroke assessment, urgent imaging and specialist selection for reperfusion treatment.
American Speech-Language-Hearing Association · Swallowing screening
Stop a screen when dysphagia risk appears; refer for assessment. Bedside signs do not reliably exclude aspiration.

Links and relevant guidance checked October 7, 2026. Publication dates differ; local requirements may differ. These original cases do not imply endorsement by the source organizations.

Now connect the cues to clinical judgment.
Practise an NGN case · Access depends on your plan.

Diabetic metabolic emergency

Ketosis with modest glucose after an SGLT2 medicine

Extremely difficult

The situation

A person with diabetes taking an SGLT2 medicine has vomiting, abdominal pain and deep breathing after poor intake. Glucose is not very high, but ketones and acidosis are found. Potassium testing is pending.

What should catch your attention

SGLT2 exposure
Ketones and acidosis
Modest glucose

Your immediate priority

Activate the monitored DKA pathway and verify electrolytes and prescribed fluids, insulin and dextrose plans.

01SGLT2 exposure
02Activate the monitored DKA pathway and verify electrolytes and prescribed fluids, insulin and dextrose plans.
03Check response + communicate

Decision pathway · a learning summary, not a substitute for the full clinical plan

What the RN should do—and why

1
Respond to the situation first
Activate the monitored DKA pathway and verify electrolytes and prescribed fluids, insulin and dextrose plans. [1]
Why it matters DKA can occur with only modest glucose, particularly with SGLT2 medicines or reduced intake.
2
Assess the whole picture
Check consciousness, breathing, hydration and glucose; report ketones, vomiting, abdominal pain and diabetes medicines. [1]
Why it matters DKA can occur with only modest glucose, particularly with SGLT2 medicines or reduced intake.
3
Prepare the monitored pathway
Arrange ordered ketone, blood-gas and electrolyte tests; prepare prescribed fluids and insulin with potassium checks. [1]
Why it matters Insulin shifts potassium into cells, so unrecognized low potassium can become dangerous.
4
Follow trends rather than glucose alone
Monitor glucose, ketones, acid-base status, potassium and balance; use ordered dextrose when required while insulin continues to clear ketosis. [1]
Why it matters A better glucose value does not prove the acidosis has resolved.

What to look for next

Use ketone and acid-base trends as well as glucose. Report neurological decline, shock or arrhythmia immediately. Confirm the transition plan and overlap of insulin with the diabetes team.

Avoid this shortcut

Do not exclude DKA because the glucose number is lower than expected. Do not exclude DKA because glucose looks near normal or independently start insulin before the electrolyte plan is checked.

A clear way to hand it over

“I am calling about this new concern: ketosis with modest glucose after an SGLT2 medicine. The key findings are __, starting at __. Baseline and relevant medicines/procedures are __. I have __. My assessment is __, and I need __ by __. Current response and outstanding actions are __.”

Use your facility's handover format; fill in the actual findings and times.

In plain English Acidosis means the blood is too acidic; ketosis means ketones are accumulating.

Sources behind the actions 1 primary references

ADA / EASD / JBDS / AACE / DTS · Hyperglycemic crises in adults with diabetes: 2024 consensus report
Euglycemic DKA, ketone/acid-base assessment, fluids/insulin/electrolytes, dextrose when needed and potassium safety before insulin.

Links and relevant guidance checked October 7, 2026. Publication dates differ; local requirements may differ. These original cases do not imply endorsement by the source organizations.

Now connect the cues to clinical judgment.
Practise an NGN case · Access depends on your plan.

Seizure & emergency neurology

A convulsion continues for five minutes

Extremely difficult

The situation

An adult is still convulsing five minutes after onset. Breathing is compromised and there is no immediately available personal rescue plan. Their friend is unsure what medicines they take.

What should catch your attention

Prolonged convulsion
Breathing risk
No rescue plan available

Your immediate priority

Activate immediate emergency seizure treatment with airway support under the protocol.

01Prolonged convulsion
02Activate immediate emergency seizure treatment with airway support under the protocol.
03Check response + communicate

Decision pathway · a learning summary, not a substitute for the full clinical plan

What the RN should do—and why

1
Respond to the situation first
Activate immediate emergency seizure treatment with airway support under the protocol. [1]
Why it matters Duration, repeated events and breathing compromise determine urgency.
2
Time and protect
Note onset, protect from injury, assess airway and breathing and summon help; use safe positioning when possible. [1]
Why it matters Duration, repeated events and breathing compromise determine urgency.
3
Follow the rescue plan
A convulsive seizure lasting five minutes or repeated seizures without recovery needs immediate emergency treatment; give authorized rescue medicine and support ventilation. [1]
Why it matters Prolonged seizures can cause injury and become harder to stop.
4
Investigate and reassess
Check glucose when indicated, document movements and recovery, and arrange clinical review for cause and ongoing treatment. [1]
Why it matters Hypoglycemia, infection, missed medicines and neurological injury need different follow-up.

What to look for next

Watch ventilation after rescue medicine and monitor for recurrent events. Watch airway, breathing and return toward baseline; persistent confusion, weakness or another seizure needs escalation.

Avoid this shortcut

Do not wait for the complete medication history before emergency treatment. Do not restrain limbs, put objects in the mouth or give oral medicines during impaired consciousness.

A clear way to hand it over

“I am calling about this new concern: a convulsion continues for five minutes. The key findings are __, starting at __. Baseline and relevant medicines/procedures are __. I have __. My assessment is __, and I need __ by __. Current response and outstanding actions are __.”

Use your facility's handover format; fill in the actual findings and times.

In plain English Status epilepticus includes a convulsive seizure lasting five minutes or more; repeated events without recovery are also an emergency.

Sources behind the actions 1 primary references

NICE · NG217: Status and prolonged seizures
Emergency assessment and treatment of prolonged or repeated seizures without recovery.

Links and relevant guidance checked October 7, 2026. Publication dates differ; local requirements may differ. These original cases do not imply endorsement by the source organizations.

Now connect the cues to clinical judgment.
Practise an NGN case · Access depends on your plan.

Poisoning & overdose

An overdose patient wakes then becomes drowsy again

Extremely difficult

The situation

A patient treated for suspected opioid toxicity becomes alert briefly after reversal, then breathing slows again. An unknown long-acting substance may have been taken with alcohol. The patient requests immediate discharge.

What should catch your attention

Recurrent sedation
Unknown formulation
Mixed exposure

Your immediate priority

Reassess ventilation urgently and obtain toxicology-informed monitoring and capacity review through the clinical team.

01Recurrent sedation
02Reassess ventilation urgently and obtain toxicology-informed monitoring and capacity review through the clinical team.
03Check response + communicate

Decision pathway · a learning summary, not a substitute for the full clinical plan

What the RN should do—and why

1
Respond to the situation first
Reassess ventilation urgently and obtain toxicology-informed monitoring and capacity review through the clinical team. [1]
Why it matters The immediate physiological threat matters before every substance is identified.
2
Assess and protect
Check airway, breathing, circulation, glucose when indicated and staff exposure risk; activate emergency response for compromise. [1]
Why it matters The immediate physiological threat matters before every substance is identified.
3
Collect useful details
Bring packaging safely, note substance, amount if known and time, and contact the clinical team or poison-information service. [1]
Why it matters Different toxins need different tests, observation and antidote decisions.
4
Follow the authorized pathway
Prepare prescribed monitoring, tests and treatment; arrange mental-health and safeguarding assessment when relevant after immediate stabilization. [1]
Why it matters Delayed toxicity and the circumstances of exposure both affect safe follow-up.

What to look for next

Continue observation for recurrence and other substance effects. Watch consciousness, ventilation, rhythm and delayed symptoms through the advised period; a short improvement may not mean clearance.

Avoid this shortcut

Do not consider one response to naloxone proof that toxicity is over. Do not induce vomiting or give a nonspecific antidote or charcoal without a clinically authorized plan.

A clear way to hand it over

“I am calling about this new concern: an overdose patient wakes then becomes drowsy again. The key findings are __, starting at __. Baseline and relevant medicines/procedures are __. I have __. My assessment is __, and I need __ by __. Current response and outstanding actions are __.”

Use your facility's handover format; fill in the actual findings and times.

In plain English An antidote is a substance-specific treatment; it does not replace support of breathing and circulation.

Sources behind the actions 2 primary references

NHS · Poisoning: urgent response
Immediate clinical help, airway assessment, exposure information and no induced vomiting.
American Heart Association · 2025 Resuscitation Guidelines: special circumstances
Prioritize airway/ventilation in opioid respiratory emergencies, give naloxone and monitor for recurrent respiratory depression.

Links and relevant guidance checked October 7, 2026. Publication dates differ; local requirements may differ. These original cases do not imply endorsement by the source organizations.

Now connect the cues to clinical judgment.
Practise an NGN case · Access depends on your plan.

Major trauma & hemorrhage

Shock with abdominal trauma and little external blood

Extremely difficult

The situation

A person in a vehicle collision has increasing abdominal pain, cool skin and falling pressure. There is little visible bleeding. They also report neck pain and have a changing mental state.

What should catch your attention

Possible concealed bleeding
Shock
Potential spinal injury

Your immediate priority

Activate the major-trauma response and prepare coordinated resuscitation and source-control assessment.

01Possible concealed bleeding
02Activate the major-trauma response and prepare coordinated resuscitation and source-control assessment.
03Check response + communicate

Decision pathway · a learning summary, not a substitute for the full clinical plan

What the RN should do—and why

1
Respond to the situation first
Activate the major-trauma response and prepare coordinated resuscitation and source-control assessment. [1]
Why it matters Immediately threatening problems must be addressed before completing a long injury history.
2
Use the trauma sequence
Call the trauma response and assess catastrophic bleeding, airway, breathing, circulation and neurological status within the trained pathway. [1]
Why it matters Immediately threatening problems must be addressed before completing a long injury history.
3
Support safe interventions
Control external bleeding with trained measures, protect suspected spinal injury and prepare ordered resuscitation and imaging or surgery. [1]
Why it matters Several injuries can coexist; visible bleeding may not be the only threat.
4
Prevent secondary harm
Maintain warmth, record trends and intervention times, and coordinate transfer with the trauma team. [1]
Why it matters Cold, hypoperfusion and delays can worsen injury and bleeding.

What to look for next

Repeat circulation and neurological assessments after every intervention. Repeat the assessment after every intervention and transfer; escalation continues if perfusion, ventilation or consciousness deteriorates.

Avoid this shortcut

Do not estimate total blood loss from the visible wound alone. Do not move a potentially unstable injured person casually or delay lifesaving airway care solely to maintain immobilization.

A clear way to hand it over

“I am calling about this new concern: shock with abdominal trauma and little external blood. The key findings are __, starting at __. Baseline and relevant medicines/procedures are __. I have __. My assessment is __, and I need __ by __. Current response and outstanding actions are __.”

Use your facility's handover format; fill in the actual findings and times.

In plain English Secondary injury is additional harm caused after the original trauma, such as from low oxygen or poor perfusion.

Sources behind the actions 2 primary references

NICE · NG39: Major trauma assessment and management
Urgent trauma assessment, bleeding and airway/circulatory support.
NICE · NG41: Spinal injury assessment
Neurological assessment and trained safe handling of suspected spinal injury.

Links and relevant guidance checked October 7, 2026. Publication dates differ; local requirements may differ. These original cases do not imply endorsement by the source organizations.

Now connect the cues to clinical judgment.
Practise an NGN case · Access depends on your plan.

Clot & breathing emergency

Sudden breathlessness after recent surgery

Extremely difficult

The situation

A patient discharged after orthopedic surgery develops abrupt breathlessness, chest pain and near-syncope. Pressure is low. Their wound has recently bled, which makes treatment decisions more complex.

What should catch your attention

Recent surgery
Acute respiratory symptoms
Shock with bleeding risk

Your immediate priority

Arrange emergency PE assessment and report both clot and bleeding risks to the treating team.

01Recent surgery
02Arrange emergency PE assessment and report both clot and bleeding risks to the treating team.
03Check response + communicate

Decision pathway · a learning summary, not a substitute for the full clinical plan

What the RN should do—and why

1
Respond to the situation first
Arrange emergency PE assessment and report both clot and bleeding risks to the treating team. [1]
Why it matters A clot in the lung circulation can reduce oxygen transfer and overload the heart.
2
Assess and call
Assess breathing, chest symptoms, saturation, pulse and pressure; obtain immediate help for collapse or shock. [1]
Why it matters A clot in the lung circulation can reduce oxygen transfer and overload the heart.
3
Prepare urgent investigation
Follow the local PE pathway for monitoring, access and ordered imaging or tests; report surgery, immobility and bleeding risk. [1]
Why it matters Clinical assessment determines which tests and treatments are appropriate.
4
Support prescribed treatment
Prepare anticoagulation or emergency specialist treatment as directed, using medicine and bleeding checks. [1]
Why it matters Treating clot risk must be balanced with bleeding and the person’s hemodynamic state.

What to look for next

Track perfusion and support needs continuously. Trend breathing, oxygen needs and circulation; new syncope, hypotension or increasing distress requires further immediate escalation.

Avoid this shortcut

Do not choose anticoagulation or withholding it independently from one risk factor. Do not massage a suspected clot, make the breathless patient walk or delay shock care for routine testing.

A clear way to hand it over

“I am calling about this new concern: sudden breathlessness after recent surgery. The key findings are __, starting at __. Baseline and relevant medicines/procedures are __. I have __. My assessment is __, and I need __ by __. Current response and outstanding actions are __.”

Use your facility's handover format; fill in the actual findings and times.

In plain English An embolus is material, often a blood clot, that travels and blocks a blood vessel.

Sources behind the actions 2 primary references

NICE · NG158: Venous thromboembolic diseases—recommendations
Urgent PE diagnostic pathway, ordered anticoagulation and emergency management of hemodynamic instability.
NICE · CG50: Recognising and responding to inpatient deterioration
Escalate using both physiological changes and clinical concern; emergencies bypass a routine graded response.

Links and relevant guidance checked October 7, 2026. Publication dates differ; local requirements may differ. These original cases do not imply endorsement by the source organizations.

Now connect the cues to clinical judgment.
Practise an NGN case · Access depends on your plan.

Electrolyte & rhythm safety

Potassium-related ECG changes after missed dialysis

Extremely difficult

The situation

A patient misses two dialysis sessions and arrives weak and nauseated. Potassium is critically high and the ECG has widening complexes. Their access may be infected and the last insulin dose is unclear.

What should catch your attention

Missed dialysis
ECG change
Access and glucose uncertainties

Your immediate priority

Activate renal and resuscitation support, communicate access concerns and ensure the prescribed potassium and glucose-monitoring plan is complete.

01Missed dialysis
02Activate renal and resuscitation support, communicate access concerns and ensure the prescribed potassium and glucose-monitoring plan is complete.
03Check response + communicate

Decision pathway · a learning summary, not a substitute for the full clinical plan

What the RN should do—and why

1
Respond to the situation first
Activate renal and resuscitation support, communicate access concerns and ensure the prescribed potassium and glucose-monitoring plan is complete. [1]
Why it matters Severe potassium elevation can cause fatal rhythm changes, sometimes without dramatic symptoms.
2
Assess cardiac risk
Check symptoms, monitoring and ECG promptly; report the potassium result, kidney function and sample concerns without delaying care for an unstable patient. [1]
Why it matters Severe potassium elevation can cause fatal rhythm changes, sometimes without dramatic symptoms.
3
Support ordered stabilization
Prepare protocol-directed calcium when indicated and potassium-shifting or removal treatment; follow independent medicine checks. [1]
Why it matters Calcium protects the heart temporarily but does not remove potassium from the body.
4
Monitor treatment complications
Track repeat potassium and ECG, and glucose checks after insulin-based treatment, following the full monitoring period. [1]
Why it matters Potassium can rebound and treatment can cause delayed hypoglycemia.

What to look for next

Watch recurrence and the need for definitive potassium removal. Escalate ECG deterioration, recurrent high potassium or low glucose. Confirm the plan for potassium removal and medicine review.

Avoid this shortcut

Do not assume temporary ECG improvement means potassium has been removed. Do not assume a normal ECG excludes danger or that calcium has corrected the potassium level.

A clear way to hand it over

“I am calling about this new concern: potassium-related ECG changes after missed dialysis. The key findings are __, starting at __. Baseline and relevant medicines/procedures are __. I have __. My assessment is __, and I need __ by __. Current response and outstanding actions are __.”

Use your facility's handover format; fill in the actual findings and times.

In plain English Hyperkalemia means potassium in blood is too high.

Sources behind the actions 1 primary references

UK Kidney Association · Management of hyperkalaemia in adults (updated July 2026)
Urgent ECG/monitoring, calcium for indicated cardiac toxicity, potassium-lowering treatment and glucose monitoring after insulin.

Links and relevant guidance checked October 7, 2026. Publication dates differ; local requirements may differ. These original cases do not imply endorsement by the source organizations.

Now connect the cues to clinical judgment.
Practise an NGN case · Access depends on your plan.

Bleeding & circulation

GI bleeding with shock and anticoagulant exposure

Extremely difficult

The situation

A patient vomits blood and passes black stool. They are confused, hypotensive and taking an anticoagulant for a previous clot. Blood products and urgent endoscopy are being considered by the clinical team.

What should catch your attention

Active bleeding
Shock
Competing clot and bleeding risk

Your immediate priority

Activate major-bleeding support, identify the last anticoagulant dose and prepare ordered source-control and transfusion care.

01Active bleeding
02Activate major-bleeding support, identify the last anticoagulant dose and prepare ordered source-control and transfusion care.
03Check response + communicate

Decision pathway · a learning summary, not a substitute for the full clinical plan

What the RN should do—and why

1
Respond to the situation first
Activate major-bleeding support, identify the last anticoagulant dose and prepare ordered source-control and transfusion care. [1]
Why it matters External loss can underestimate bleeding, and a normal early blood count cannot rule out shock.
2
Call and assess
Activate the local bleeding response for instability; assess airway, breathing, pulse, pressure, alertness and visible loss. [1]
Why it matters External loss can underestimate bleeding, and a normal early blood count cannot rule out shock.
3
Prepare safe resuscitation
Maintain or obtain suitable access within competence; prepare ordered fluids, blood tests and blood products using identification and compatibility checks. [1]
Why it matters Resuscitation supports circulation while the team seeks the bleeding source.
4
Track treatment and source control
Report procedure history, anticoagulants and last doses; help arrange urgent specialist review and prescribed monitoring. [1]
Why it matters Replacement alone cannot stop every source of bleeding or resolve medication-related risk.

What to look for next

Track ongoing loss and response; ensure later anticoagulation decisions are documented. Trend observations and loss after interventions. Escalate ongoing shock, respiratory change or a suspected transfusion reaction immediately.

Avoid this shortcut

Do not independently select a reversal drug or restart anticoagulation after a brief improvement. Do not wait for a laboratory result before responding to shock or independently select reversal drugs.

A clear way to hand it over

“I am calling about this new concern: gI bleeding with shock and anticoagulant exposure. The key findings are __, starting at __. Baseline and relevant medicines/procedures are __. I have __. My assessment is __, and I need __ by __. Current response and outstanding actions are __.”

Use your facility's handover format; fill in the actual findings and times.

In plain English Hemodynamic instability means circulation is not adequately supporting the body.

Sources behind the actions 2 primary references

NICE · NG24: Blood transfusion (updated February 2026)
General blood-product decisions, compatibility and patient monitoring; major bleeding follows a separate emergency pathway.
NICE · CG50: Recognising and responding to inpatient deterioration
Escalate using both physiological changes and clinical concern; emergencies bypass a routine graded response.

Links and relevant guidance checked October 7, 2026. Publication dates differ; local requirements may differ. These original cases do not imply endorsement by the source organizations.

Now connect the cues to clinical judgment.
Practise an NGN case · Access depends on your plan.

CONNECT UNDERSTANDING TO EXAM PRACTICE

The explanation is clear.
The exam asks you to choose.

Here, we explain the nursing response directly. In an NCLEX®-style question, several options may sound reasonable. You must weigh the cues, priority, timing and safety—not just recognize a familiar phrase.

Practise applying the reasoning, read why alternatives are less appropriate and review your decisions before exam day.

Build question-bank judgmentStudy by topic or system; review the rationale

Work through NGN casesConnect changing cues across a case

Explore standalone NGN itemsPractise decisions in different item formats

Rehearse a full mockPractise pacing and review your decisions

Try adaptive practiceA CAT-style learning simulator

For tutors & preceptors

Turn a scenario into a conversation.

Pause at the cues. Ask learners to identify the change from baseline and the immediate risk.
Explain the action. Ask what is independent nursing care and what requires a protocol or order.
Change one detail. Explore how unsafe swallowing, low pressure or kidney disease alters the plan.
Rehearse the handover. Compare with local policy, check the source and name what must be reassessed.

Explore the free teaching toolkit

Emergency Department

A waiting patient’s breathing changes

What should catch your attention

What the RN should do—and why

Respond to the situation first

Assess current risk

Escalate change

Keep the waiting plan safe

What to look for next

Avoid this shortcut

A clear way to hand it over

An incorrect identity on a specimen label

What should catch your attention

What the RN should do—and why

Respond to the situation first

Pause and verify

Clarify with the team

Close the loop

What to look for next

Avoid this shortcut

A clear way to hand it over

A discharge sheet the patient cannot read

What should catch your attention

What the RN should do—and why

Respond to the situation first

Make the explanation accessible

Use a small teach-back

Repair the gap

What to look for next

Avoid this shortcut

A clear way to hand it over

Pain persists after a splint is fitted

What should catch your attention

What the RN should do—and why

Respond to the situation first

Recognize disproportionate findings

Escalate and remove external constriction safely

Prepare definitive treatment

What to look for next

Avoid this shortcut

A clear way to hand it over

The home medicine list misses an anticoagulant

What should catch your attention

What the RN should do—and why

Respond to the situation first

Pause and verify

Clarify with the team

Close the loop

What to look for next

Avoid this shortcut

A clear way to hand it over

Vomiting and dizziness after several days of poor intake

What should catch your attention

What the RN should do—and why

Respond to the situation first

Measure the change

Match support to safety

Check response

What to look for next

Avoid this shortcut

A clear way to hand it over

An asthma patient becomes quiet

What should catch your attention

What the RN should do—and why

Respond to the situation first

Assess severity

Deliver authorized treatment

Reassess promptly

What to look for next

Avoid this shortcut

A clear way to hand it over

Smoke exposure with a small visible burn

What should catch your attention

What the RN should do—and why

Respond to the situation first

Stop exposure safely

Escalate important features

Protect and monitor

What to look for next

Avoid this shortcut