NCLEX-RN® Neurology Guide: Stroke, Seizures, ICP, and Spinal Cord Injury

Neurological emergencies on the NCLEX-RN®: recognising stroke, managing seizures safely, monitoring for raised ICP, and prioritising care after spinal cord injury.

The big picture

Neurological disorders are tested throughout the NCLEX-RN® under Physiological Integrity: Physiological Adaptation. The core nursing skill is neurological assessment — recognizing when the brain is in danger. A change in level of consciousness, new focal deficit, or pupillary change is always a red flag that requires immediate action. This guide covers stroke, seizures, increased intracranial pressure, and spinal cord injury — the four neurological conditions tested most heavily.

Stroke (cerebrovascular accident)

A stroke is sudden interruption of cerebral blood flow, leading to brain tissue death. Speed is everything: "Time is brain" — 1.9 million neurons die every minute during an untreated ischemic stroke.

Ischemic vs. hemorrhagic stroke

FAST + BE recognition

FAST is the classic stroke mnemonic:

• Face drooping (unilateral)
• Arm weakness (one arm drifts down)
• Speech difficulty (slurred, wrong words, inability to speak)
• Time to call 911

Expanded to BE-FAST for NCLEX®:

• Balance problems
• Eyes (vision changes, double vision, sudden blindness)
• ...then FAST above

tPA (alteplase) — eligibility and nursing priorities

tPA is a clot-busting drug for ischemic stroke. NCLEX® tests the contraindications and monitoring.

Absolute contraindications:

• Hemorrhagic stroke (CT shows bleeding)
• Active internal bleeding
• Recent surgery (within 14 days for major surgery; 3 months for intracranial surgery)
• Platelet count < 100,000; INR > 1.7
• Uncontrolled hypertension (SBP > 185 before treatment)

During and after tPA infusion:

1. Monitor neuro status every 15 minutes during infusion and for 2 hours after
2. Monitor BP every 15 minutes during infusion — maintain SBP < 180/105
3. No invasive procedures (avoid IM injections, Foley, NG tube) for 24 hours
4. Watch for bleeding complications: ICH, GI bleed, gingival bleeding
5. No anticoagulants or antiplatelets for 24 hours after tPA

Deficits by hemisphere

NCLEX® tip: A patient with expressive aphasia knows what they want to say but cannot get the words out — do not assume they don't understand you. Speak normally; allow extra time to respond.

Seizures

A seizure is abnormal, excessive electrical discharge in the brain. Nursing priorities are safety and observation.

Seizure classification (simplified for NCLEX®)

Nursing actions during a seizure

1. Do not restrain the patient — guide gently; prevent injury
2. Clear the area of hard objects; lower the bed if possible
3. Turn patient on their side (lateral position) to prevent aspiration — do not put anything in the mouth
4. Time the seizure from start to finish — duration matters clinically
5. Maintain airway — suction if needed after the seizure
6. Stay with the patient — observe and document type, body parts involved, duration, postictal state
7. Call for help if the seizure lasts > 5 minutes or the patient does not regain consciousness

Never do during a seizure

• Put anything in the patient's mouth (does not prevent tongue biting; causes injury and aspiration)
• Forcibly restrain extremities (causes fractures)
• Leave the patient alone

Postictal period

After a generalized tonic-clonic seizure, the patient is typically confused, drowsy, and amnestic for the event. This is normal. Allow them to rest; reorient as they wake. Document the duration of the postictal state.

Anticonvulsant medications

Increased intracranial pressure (ICP)

The skull is a closed box. Any increase in brain tissue, blood, or CSF raises ICP. Normal ICP is 0–15 mmHg; sustained ICP > 20 mmHg requires intervention.

Early vs. late signs — critical for NCLEX®

Cushing's triad — the brain's final alarm

1. Hypertension with widening pulse pressure (systolic rising while diastolic stays stable or falls)
2. Bradycardia (HR < 60)
3. Irregular respirations (Cheyne-Stokes or agonal)

NCLEX® exam alert: Cushing's triad is a very late and critical sign of herniation. The question will ask you to identify it and notify the provider immediately.

Abnormal posturing — what it means

Nursing interventions to reduce ICP

1. Elevate HOB 30° — promotes venous drainage from the brain (do not flex or rotate the neck)
2. Maintain neutral head alignment — neck flexion impedes jugular drainage
3. Avoid clustering care activities — stimulation raises ICP
4. Prevent Valsalva maneuvers: administer stool softeners; avoid coughing, straining, or suctioning for more than 10 seconds
5. Quiet, calm environment — dim lights, reduce stimulation
6. Monitor and report changes in pupil size/reactivity (unilateral dilation = herniation until proven otherwise)
7. Avoid hypotonic fluids — use isotonic (NS) to prevent cerebral edema

ICP-lowering medications (ordered by provider)

Spinal cord injury (SCI)

Level of injury determines function loss

Spinal shock vs. neurogenic shock

NCLEX® key: Neurogenic shock presents with the unique combination of hypotension + bradycardia + warm skin — remember: no tachycardia, no vasoconstriction.

Autonomic dysreflexia — medical emergency

Autonomic dysreflexia occurs in patients with SCI at T6 or above. An unidentified stimulus below the level of injury triggers massive sympathetic outflow — the result can be hypertensive stroke.

Triggers (most common): full bladder (most common), constipation/fecal impaction, pressure sores, tight clothing, ingrown toenail, pain below injury level.

Signs:

• Sudden, severe pounding headache
• Hypertension (BP may spike to 250/150 or higher)
• Flushing and diaphoresis above the injury level
• Pallor and goosebumps below the injury level
• Bradycardia, nasal congestion, anxiety

Nursing actions (in order):

1. Sit the patient upright immediately — lowers BP by pooling blood in lower extremities
2. Check and empty the catheter/bladder — kinked tubing or full bladder is the most common cause
3. Check for bowel impaction — disimpact carefully using anesthetic ointment
4. Loosen or remove any tight clothing or devices
5. Monitor BP every 5 minutes
6. Notify the provider — antihypertensives may be needed (nitroglycerin paste, hydralazine IV)
7. Do not leave the patient

NCLEX® clinical judgment focus

For neurological questions, the priority always is "what is the patient's neurological status right now?" Any change from baseline requires escalation.

Use the GCS (Glasgow Coma Scale) as your mental model:

• Eye opening (1–4): 4 = spontaneous; 3 = to voice; 2 = to pain; 1 = none
• Verbal (1–5): 5 = oriented; 3 = words; 1 = none
• Motor (1–6): 6 = follows commands; 4 = withdraws; 2 = decerebrate; 1 = none
• GCS ≤ 8 = coma → consider intubation

Priority order for most neuro emergencies:

1. Ensure ABCs — if airway is compromised, it's the first action
2. Notify provider of new or worsening neuro findings
3. Position appropriately (HOB 30° for ICP; flat/log-roll for SCI)
4. Implement ordered interventions

FAQ

When is tPA given for stroke?

Alteplase (tPA) is given for ischemic stroke within 3–4.5 hours of symptom onset in eligible patients. It cannot be given if the CT shows hemorrhage, if there is active bleeding, if the patient is on anticoagulants above therapeutic range, or if the patient had recent surgery or trauma. Before giving tPA, BP must be below 185/110 mmHg.

What is the difference between decorticate and decerebrate posturing?

Decorticate posturing (flexion) indicates injury at the cortical level — the arms flex, the wrists curl inward, and the legs extend. Decerebrate posturing (extension) indicates injury at the brainstem level — arms and legs extend and pronate. Decerebrate posturing carries a worse prognosis.

How do I remember Cushing's triad?

Think of the body desperately trying to push blood into the brain against rising pressure: the heart beats slower and harder (hypertension + bradycardia) while the breathing becomes irregular. Clinically: rising systolic BP, widening pulse pressure, bradycardia, irregular respirations — this is a herniation warning.

What is the first nursing action for autonomic dysreflexia?

Sit the patient upright to lower BP immediately, then identify and remove the triggering stimulus — most often a full or obstructed bladder. Do not lay the patient flat (that increases BP further). Monitor BP every 5 minutes and notify the provider.

What is spinal shock and when does it resolve?

Spinal shock is the temporary loss of all reflex activity below the level of a spinal cord injury. It occurs immediately after injury. Resolution is marked by the return of the bulbocavernosus reflex (perianal muscle contraction in response to tapping the glans penis or tugging the Foley catheter). This typically occurs within hours to 4 weeks.

Key takeaways

• Stroke: "Time is brain." FAST recognition + rapid CT. tPA within 3–4.5 h for ischemic only. Monitor BP and for bleeding after tPA.
• Seizures: Safety first. Turn to side. Time the seizure. Never restrain or put anything in the mouth. Status epilepticus > 5 minutes = emergency.
• ICP: HOB 30°, neutral alignment, quiet environment, stool softeners. Cushing's triad (HTN + bradycardia + irregular respirations) = herniation warning.
• Spinal cord injury: Level of injury determines deficit. Neurogenic shock = hypotension + bradycardia + warm skin. Autonomic dysreflexia (T6+) = sit up, check bladder first.

Sources: NCSBN NCLEX-RN® 2023 Test Plan; National Institute of Neurological Disorders and Stroke (NINDS) Stroke Resources; CDC Epilepsy Data and Statistics.

See also:

• NCLEX-RN® Patient Safety Guide
• NGN Case Study: Atrial Fibrillation and Stroke Risk
• NCLEX-RN® Cardiac Disorders
• Pediatric Cardiac and Neuro Disorders
• Emergency Nursing and Triage

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