A nurse is assessing a 72-year-old patient who was admitted 3 hours ago with suspected acute ischemic stroke. Which assessment finding would be the MOST concerning and require immediate intervention?
1Glasgow Coma Scale score decreased from 14 to 12 over the past hour
2Blood pressure reading of 180/100 mmHg with no previous history of hypertension
3New onset of expressive aphasia with right-sided facial droop
4Sudden onset of severe headache with projectile vomiting and decreased level of consciousness✓ 정답
해설
Sudden severe headache with projectile vomiting and decreased LOC indicates increased ICP, a neurological emergency requiring immediate intervention like head elevation and notification. Other findings are concerning but less immediately life-threatening.
Core Nursing ExplanationKey Concept Analysis: This question tests the nurse's ability to prioritize neurological assessments in a patient with a suspected Acute ischemic stroke. The core concept is recognizing signs of a life-threatening complication—Increased Intracranial Pressure (ICP)—which requires immediate intervention to prevent brain herniation and death. While all findings are abnormal, the nurse must identify the one signaling the most urgent, imminent danger.
Answer Rationale: Key Point! Option ④ describes the classic triad of symptoms indicating a rapid, dangerous rise in ICP: Sudden severe headache (from stretching of pain-sensitive structures), Projectile vomiting (due to pressure on the brainstem's vomiting center, often without nausea), and Decreased level of consciousness (LOC). In the context of an acute stroke, this could signify Hemorrhagic transformation of the infarct, massive cerebral edema, or an initially misdiagnosed hemorrhagic stroke. This is a neurological emergency requiring immediate actions like securing the airway, elevating the head of the bed, and notifying the physician for potential interventions like Mannitol administration.
Distractor Analysis:
Watch out for confusion! Option ①: A declining Glasgow Coma Scale (GCS) score is concerning and indicates neurological deterioration, which must be reported. However, a change from 14 to 12 (e.g., from oriented to confused, or a slight decrease in motor response) is significant but may not represent the same level of immediate life threat as signs of rapidly rising ICP.
Option ②: A blood pressure of 180/100 mmHg is elevated. In acute ischemic stroke, permissive hypertension is often allowed initially to maintain cerebral perfusion pressure (CPP). While it needs monitoring, it is not typically the most concerning finding unless it is extreme or causing end-organ damage. Immediate aggressive lowering could be harmful.
Option ③: New onset Expressive aphasia and Right-sided facial droop are expected Focal neurological deficits from a left middle cerebral artery stroke. These findings confirm the stroke diagnosis and are the reason for admission, but they themselves are not immediately life-threatening signs of a systemic complication.
Related Concepts: The nursing priority framework (ABCs—Airway, Breathing, Circulation) is paramount. A decreased LOC directly threatens airway patency (A). The Cushing's triad (hypertension, bradycardia, irregular respirations) is a late sign of severely increased ICP. Early recognition of the symptoms in option ④ is critical for timely intervention.
Concept Summary
Concept
Description
Clinical Implication
Increased Intracranial Pressure (ICP)
Rise in pressure within the rigid skull. Normal ICP is 5-15 mmHg.
Can lead to brain tissue ischemia and herniation. A medical emergency.
Herniation Syndromes
Displacement of brain tissue from one compartment to another due to pressure gradients.
Often fatal. Early signs include decreased LOC, pupil changes (unequal, dilated, sluggish), and posturing.
Focal Neurological Deficit
Loss of function in a specific brain region (e.g., weakness, aphasia, visual field cut).
Indicates the location of the stroke. Managed with stroke protocols (e.g., tPA eligibility, rehabilitation).
Permissive Hypertension
Allowing higher BP in acute ischemic stroke to maintain cerebral perfusion.
BP is often not treated unless > 220/120 mmHg or if thrombolytics are given (then target < 185/110 mmHg).
High. Requires urgent reassessment and may change management, but not an instant airway threat.
Elevated BP with no acute symptoms
Compensatory Perfusion Pressure or Chronic HTN
Moderate. Monitor closely per stroke guidelines; avoid rapid reduction.
Anatomy, Physiology & Pharmacology Points
Monro-Kellie Doctrine: The skull is a fixed volume containing brain tissue, blood, and cerebrospinal fluid (CSF). An increase in one component (e.g., blood from hemorrhage or edema from infarct) must be compensated by a decrease in another, or ICP rises.
Brainstem Compression: The vomiting center is located in the medulla. Pressure here causes projectile vomiting. Further compression affects cardiorespiratory centers, leading to Cushing's triad.
Mannitol: An osmotic diuretic used for cerebral edema. It draws fluid from brain tissue into the vasculature, reducing ICP. Monitor for electrolyte imbalances and renal function.
Memory Tips
ICP Red Flags Mnemonic: "Headache & Hurl, Then the World Twirls": Severe Headache + Projectile Hurl (vomiting) → leads to ↓LOC (the world twirling/unconsciousness).
Remember: Focal deficits tell you WHERE the stroke is. Global changes (LOC) tell you HOW BAD it's getting. Prioritize global changes.
High-Frequency NCLEX Topics
The NCLEX heavily tests prioritization and neurological emergencies. You will often see questions asking for the "most concerning," "immediate," or "priority" action. Linking specific symptoms (HA, vomiting, ↓LOC) to the complication of increased ICP is a classic test item.
Watch Out for Question Variations!
Shift from Assessment to Intervention: "The nurse notes sudden headache, vomiting, and decreased LOC in a stroke patient. What is the nurse's priority action?" (Answer: Ensure a patent airway and elevate the head of the bed).
Shift to Medication: "Which medication should the nurse anticipate administering for a stroke patient with signs of increased ICP?" (Answer: Mannitol).
Misleading BP Focus: A question may present very high BP but pair it with ICP symptoms. The ICP symptoms still take priority.
Nursing Clinical Practice GuideClinical Scenario: You are the nurse for Mr. Johnson, 72, admitted 3 hours ago with left-sided weakness. Initial CT showed an ischemic stroke. He has been stable, but now he groans loudly, clutches his head, and says, "The worst headache of my life!" before becoming less responsive. He then vomits forcefully across the bed.
Nursing Intervention Strategy:
Immediate Assessment & Action (First 60 seconds): Shout for help. Check responsiveness. Open the airway using a jaw-thrust maneuver if needed. Simultaneously, elevate the head of the bed to 30 degrees to promote venous drainage from the brain. Turn his head slightly to the side to prevent aspiration from vomiting.
Focused Neurological Assessment (Next 2-3 minutes): Perform a rapid Glasgow Coma Scale (GCS) assessment. Check pupil size, equality, and reaction to light with a penlight. Assess for posturing (decorticate or decerebrate).
Notification and Preparation (Concurrent): Activate the rapid response team or call the provider STAT. Report using SBAR: Situation (patient with acute stroke), Background (admitted 3 hours ago), Assessment (sudden severe headache, projectile vomiting, GCS dropped from 14 to 8, pupils equal but sluggish), Recommendation (request immediate evaluation for increased ICP).
Ongoing Monitoring & Care: Monitor vital signs every 5-15 minutes, watching for Cushing's triad. Maintain a quiet, dimly lit environment. Avoid actions that increase ICP (e.g., vigorous suctioning, flexion of the neck, Valsalva maneuver). Prepare for possible intubation and transfer to ICU.
Patient Safety and Precautions:
Avoid Hypotension: While treating ICP, ensure IV fluids and vasopressors are ready to maintain cerebral perfusion pressure (CPP = MAP - ICP). Sudden drops in BP can worsen brain ischemia.
Suctioning Caution: If suctioning is necessary to clear the airway, pre-oxygenate with 100% O2 and limit suction passes to <10 seconds to prevent hypoxia and further ICP spike.
Seizure Precautions: Increased ICP lowers the seizure threshold. Have padding for side rails and emergency seizure medications (e.g., Lorazepam) available.
Positioning: HOB elevated 30-45 degrees, neck in neutral alignment.
Monitoring: Continuous pulse oximetry, cardiac monitoring, and frequent neuro checks.
Medication Administration (if ordered):
Mannitol 20%: Administer via IV pump using a filter. Monitor for signs of fluid overload and heart failure (crackles, dyspnea) as it expands intravascular volume initially. Strict I&O and electrolyte monitoring (especially Na, K) are crucial.
Hypertonic Saline (3%): Another option. Requires central line administration and extremely careful monitoring of serum sodium to avoid rapid shifts.
A Word from Your Senior Nurse
"In neuro nursing, you are the guardian of the patient's brain function. The subtle change—the new headache, the different tone in their voice, the slight delay in answering—is your early warning system. Never dismiss a patient's report of 'the worst headache ever.' That phrase is a red flag waving at you. On the NCLEX and in practice, your ability to connect symptoms like projectile vomiting to brainstem pressure, rather than just 'an upset stomach,' is what separates a task-completer from a life-saving critical thinker. Always think about the why behind the symptom. It will make you an excellent test-taker and an even better nurse."
Increased Intracranial Pressure — A rise in pressure within the rigid skull vault. Normal is 5-15 mmHg. Can lead to brain herniation and is a neurological emergency.
Glasgow Coma Scale — A standardized tool for assessing level of consciousness based on eye opening, verbal response, and motor response. Scores range from 3 (deep coma) to 15 (fully alert).
Expressive Aphasia (Broca's Aphasia) — A language disorder where the patient understands speech but has difficulty producing fluent, meaningful language. Often due to damage in Broca's area in the frontal lobe.
Herniation — The displacement of brain tissue from its normal compartment into another, often through openings in the dural septa (e.g., tentorium cerebelli). A catastrophic complication of increased ICP.
Permissive Hypertension — A management strategy in acute ischemic stroke where elevated blood pressure is tolerated to maintain adequate blood flow (perfusion) to the ischemic penumbra (at-risk brain tissue).