A nurse is caring for an unconscious 60-year-old client with increased intracranial pressure (ICP) due to a hemorrhagic stroke. Which nursing intervention should be the priority to prevent further elevation of ICP?
1Perform frequent neurological assessments every 15 minutes
2Position the client with head of bed elevated 30 degrees and head in neutral alignment✓ 정답
3Administer prescribed osmotic diuretics as ordered
4Monitor vital signs and oxygen saturation continuously
해설
Positioning with head elevated 30 degrees and neutral alignment is the priority intervention to promote venous drainage and immediately reduce ICP. Other measures are supportive but less immediate in effect.
Core Nursing ExplanationKey Concept Analysis: This question assesses the priority nursing intervention for a patient with Increased Intracranial Pressure (ICP). The core pathophysiological principle is the Monro-Kellie doctrine: the skull is a rigid compartment containing brain tissue, blood, and cerebrospinal fluid (CSF). An increase in the volume of any one component (like blood from a hemorrhage) must be compensated for by a decrease in another, or ICP will rise. The priority is to Key Point!immediately optimize physiological conditions to reduce ICP and prevent herniation, which is a life-threatening emergency.
Answer Rationale: Key Point! Elevating the head of the bed (HOB) to 30 degrees and maintaining the head in a neutral, midline position is the priority because it is a non-invasive, immediate, and foundational intervention that promotes venous drainage from the brain via the jugular veins. This reduces cerebral blood volume, thereby lowering ICP. It is a nursing action that can be implemented immediately upon assessment and is the cornerstone of ICP management before and during other therapies.
Distractor Analysis:
1. Watch out for confusion! While frequent neurological assessments (e.g., using the Glasgow Coma Scale (GCS)) are critical for monitoring the patient's status, they are an assessment tool, not an intervention to prevent further ICP elevation. Assessment informs care but does not directly alter physiology.
3. Administering osmotic diuretics (like Mannitol) is a key medical intervention to reduce cerebral edema and ICP. However, it requires a physician's order, takes time to prepare and administer, and its effect is not immediate. The question asks for the nursing intervention that should be the priority, and positioning is an independent nursing action that provides immediate benefit.
4. Continuous monitoring of vital signs and oxygen saturation (SpO2) is essential, especially to detect Cushing's triad (bradycardia, hypertension, irregular respirations) and ensure adequate oxygenation. However, like option 1, it is primarily a monitoring activity. Furthermore, preventing hypoxia is crucial because hypoxia causes cerebral vasodilation, which increases ICP. While important, the specific, direct action to promote venous drainage (positioning) takes precedence as the most effective immediate intervention to lower ICP.
Related Concepts: The nursing approach to increased ICP follows the ABC (Airway, Breathing, Circulation) priority framework, with a neuro-specific twist: ensuring a patent airway and preventing hypoxia/hypercapnia (which increase cerebral blood flow) are paramount. All interventions aim to reduce cerebral metabolic demand and optimize cerebral perfusion pressure (CPP).Nursing Clinical Practice GuideClinical Scenario: You are the nurse in the Neuro-ICU. Mr. Johnson, 60, is post-emergency craniotomy for a hemorrhagic stroke. He is intubated, sedated, and on a ventilator. The monitor shows an ICP reading of 22 mmHg (normal: 5-15 mmHg).
Nursing Intervention Strategy:
Immediate Action (Priority): First, ensure the HOB is at 30 degrees. Gently reposition the patient's head to a neutral, midline alignment. Check that the endotracheal tube (ETT) securing device and cervical collar (if present) are not causing jugular venous compression.
Comprehensive Assessment: Perform a focused neurological assessment (GCS pupils, motor response). Monitor ICP and CPP trends. Assess for signs of herniation (unequal/pupil dilation, posturing, sudden decrease in consciousness).
Collaborative Care: Administer prescribed sedatives (e.g., Propofol) to reduce cerebral metabolic rate. Administer osmotic diuretics (Mannitol) or hypertonic saline per protocol, monitoring serum osmolality and electrolytes closely. Prepare for potential interventions like CSF drainage or hyperventilation (temporary measure) per physician order.
Prevent Noxious Stimuli: Cluster nursing care to minimize frequent handling. Provide pain management and sedation before suctioning or turning. Avoid activities that cause Valsalva maneuvers (straining).
Patient Safety and Precautions:
Contraindications: Do not lower the HOB flat unless specifically ordered for procedures or if the patient becomes hemodynamically unstable (e.g., severe hypotension).
Medication Cautions: Mannitol can cause profound diuresis, leading to hypotension and electrolyte imbalances (watch for hypokalemia). Monitor intake and output (I&O) strictly.
Key Monitoring: Maintain PaCO2 within 35-45 mmHg. Hypercapnia (>45 mmHg) causes vasodilation and increases ICP. Hypoxia (SpO2 < 90%) must be avoided.
Nursing Procedure & Medication FlowPositioning for ICP Management:
1. Use an adjustable hospital bed. Raise the HOB to 30 degrees (use a protractor if available for accuracy).
2. Support the head with a pillow to maintain a neutral, "eyes-forward" position. Avoid neck flexion, extension, or rotation.
3. Keep the torso aligned; avoid hip flexion > 90 degrees, which can increase intra-abdominal and intrathoracic pressure.
Mannitol Administration:
* Action: Osmotic diuretic that draws fluid from brain tissue into the vasculature.
* Route/Preparation: IV infusion via a filter. Often given as a bolus.
* Monitoring: Check serum osmolality (goal often < 320 mOsm/kg to avoid renal toxicity). Monitor for fluid overload initially, then dehydration.
A Word from Your Senior Nurse
"In neuro nursing, you are the guardian of the patient's ICP. That 30-degree head elevation isn't just a random number—it's a lifesaving angle. I've seen a patient's ICP drop by several points just from correcting a slumped neck. Always think about the physiology: you're helping blood and fluid flow *out* of the rigid skull. Your vigilant positioning, along with minimizing cluster and suction, are powerful independent nursing actions. On the NCLEX, they love to test your ability to distinguish between 'monitoring' and 'intervening.' Remember: assess first, but your priority action is often the one that directly changes the patient's physiology for the better."
Monro-Kellie Doctrine — The principle that the skull is a rigid compartment; an increase in volume of one component (brain, blood, CSF) must be compensated by a decrease in another, or ICP will rise.
Cerebral Perfusion Pressure — The net pressure gradient driving blood flow to the brain. Calculated as Mean Arterial Pressure (MAP) minus Intracranial Pressure (ICP). Must be maintained > 60 mmHg.
Herniation — A life-threatening complication of severely elevated ICP where brain tissue is displaced from one compartment into another, compressing vital brainstem structures.
Osmotic Diuretic — A hyperosmolar agent that draws water from tissues, including the brain, into the vascular space, reducing cerebral edema and ICP. Requires careful monitoring of fluid status and electrolytes.
Glasgow Coma Scale — A standardized neurological assessment tool evaluating eye opening, verbal response, and motor response. Scores range from 3 (deep coma) to 15 (fully alert). A decreasing score indicates neurological deterioration.