Increased ICP and head injury
NCLEX ICP priorities: early vs late signs, positioning, what raises pressure, and the actions that protect the brain after head injury.
By the Clesial Editorial Team · Reviewed by Clesial Editorial Team, Clinical Content Review
Updated August 4, 2026 · 9 min read
ICP items are about protecting brain perfusion. Spot rising pressure early, keep venous drainage open, and stop the things that shove pressure higher.
What rising ICP looks like
| Stage | Cues | What it means |
|---|---|---|
| Early | Restlessness, irritability, mild confusion, headache, vomiting | LOC change is the earliest reliable signal |
| Progressing | Worsening LOC, pupil changes, motor weakness | Ischemia is advancing — escalate |
| Late | Cushing triad, posturing, fixed pupils | Herniation risk — emergency |
Cushing triad = rising systolic BP with widening pulse pressure, slowing heart rate, and irregular breathing. It is late, not a green light that the client is “compensating fine.”
Nursing actions that lower pressure
| Do | Avoid |
|---|---|
| HOB ~30°, neck midline, loosen collar if it compresses veins | Flat for long periods; extreme hip flexion |
| Calm environment; space care; stool softeners to limit Valsalva | Clustering suction, turns, and painful procedures |
| Brief, necessary suction with pre-oxygenation | Prolonged suction or coughing fits you can prevent |
| Maintain ordered CO₂ / ventilation goals | Hypercapnia and hypoxia (both raise cerebral blood volume) |
Safety
A sudden drop in LOC, a new blown pupil, or posturing is not a “reassess in an hour” finding. Notify the provider and protect ABCs.
Head injury specifics
- Basilar skull fracture cues: raccoon eyes, Battle sign, CSF otorrhea/rhinorrhea — do not insert NG tubes through the nose unless cleared.
- CSF leak: allow drainage to a pad as ordered; do not pack the nose/ear tightly or teach nose-blowing.
- Seizure precautions when the cortex is irritated; have suction and oxygen ready.
- Neuro checks on a schedule — compare to the client’s baseline, not a generic “normal.”
Osmotherapy (mannitol pattern)
Hyperosmolar agents pull water from brain tissue into the vascular space. Expect heavy urine output. Watch fluid balance, sodium, and neuro response. The exam wants recognition that this is acute ICP therapy, not a casual diuretic teaching moment.
How to reason under time pressure
- Is the airway and oxygenation intact?
- Is LOC changing from this client’s baseline?
- Fix positioning and stop ICP-raising actions before chasing every lab.
- Escalate late signs immediately — do not wait for a perfect triad.
Must know
- Early ICP rise: change in LOC is the most sensitive cue. Late: Cushing triad (hypertension with widening pulse pressure, bradycardia, irregular respirations).
- Head of bed about 30°, head midline, avoid hip flexion and clustering care that spikes ICP.
- Do not suction longer than needed; pre-oxygenate; avoid Valsalva, tight collars, and flat prolonged positioning when ICP is high.
- CSF leak from nose/ear: do not pack aggressively or blow the nose; report; watch for meningitis signs.
- Mannitol / hyperosmolar therapy: expect diuresis; watch output, electrolytes, and neuro status.
- Unequal or fixed pupils and posturing are emergency neuro deterioration — notify provider now.
Memory hooks
- LOC first, Cushing late: Altered consciousness shows up before the classic vital-sign triad. Do not wait for Cushing findings to act on rising ICP.
- Midline and thirty: Neutral neck and roughly 30° head elevation promote venous drainage from the skull.
How it's tested
Stems show a head-injury client with restlessness, pupil change, or a nursing action that raises ICP. Distractors lay the client flat, cluster painful care, pack a CSF rhinorrhea, or treat Cushing triad as early and reassuring.