A client with increased intracranial pressure is being repositioned. Which position should the nurse implement to promote optimal cerebral venous drainage?
Prone
Head elevated 30 degrees
Flat
Trendelenburg
The Correct Answer is B
Increased intracranial pressure involves elevated cerebral fluid volume, impaired venous outflow, reduced cerebral perfusion pressure, and risk of brain tissue herniation. Positioning plays a critical role in optimizing venous drainage, reducing intracranial pressure, and maintaining adequate oxygen delivery to brain tissues.
Rationale:
A. Prone positioning increases intrathoracic pressure and can obstruct venous return from the brain, worsening intracranial pressure. It also compromises airway access and oxygenation in neurologically unstable clients. Increased venous congestion and impaired cerebral drainage can further elevate intracranial pressure.
B. Elevating the head of the bed to approximately 30 degrees promotes optimal cerebral venous drainage and reduces intracranial pressure. This position enhances jugular venous outflow while maintaining adequate cerebral perfusion. Improved venous return and reduced intracranial volume pressure help prevent secondary brain injury.
C. Flat positioning decreases venous drainage from the brain and increases intracranial blood volume, worsening intracranial pressure. It promotes cerebral congestion and reduces the effectiveness of gravity-assisted venous return. This leads to increased intracranial blood volume and impaired cerebral perfusion dynamics.
D. Trendelenburg position significantly increases intracranial pressure by promoting head-directed blood flow and impairing venous drainage. This position is contraindicated in clients with elevated intracranial pressure. It exacerbates cerebral congestion and reduces effective intracranial pressure control mechanisms.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Disaster triage prioritizes victims according to survivability, physiologic stability, available resource allocation, and urgency of treatment during mass casualty incidents. Rapid assessment of airway, circulation, neurologic responsiveness, and respiratory status guides categorization to maximize survival outcomes for the greatest number of clients.
Rationale:
A. A black tag is assigned to clients who are deceased or expected to have nonsurvivable injuries despite available interventions. Absence of respirations, pulses, and responsiveness indicates cardiopulmonary arrest without immediate survivability. Disaster protocols prioritize limited resources toward clients with potential for physiologic recovery and meaningful survival probability.
B. A red tag identifies clients requiring immediate life-saving intervention who still demonstrate respirations, circulation, or responsiveness. Although critically unstable, these clients possess potentially reversible conditions with prompt treatment. Complete absence of cardiovascular activity and neurologic responsiveness excludes this client from immediate treatment categorization during disaster triage.
C. A green tag is reserved for ambulatory clients with minor injuries requiring delayed or minimal medical intervention. These clients maintain stable vital functions and independent mobility without life-threatening compromise. The described client demonstrates absent vital signs and profound physiologic collapse, making minor injury classification inappropriate.
D. A yellow tag identifies clients with serious but not immediately life-threatening injuries who can tolerate delayed treatment. These clients remain hemodynamically stable with preserved airway and circulation. Absence of respirations and pulses reflects irreversible cardiopulmonary failure rather than stable delayed-care status appropriate for yellow categorization.
Correct Answer is A
Explanation
A seizure involves abnormal electrical activity in the cerebral cortex, resulting in sudden loss of consciousness, involuntary motor activity, autonomic instability, and impaired protective reflexes. Immediate nursing priorities focus on airway protection, injury prevention, and maintaining physiologic safety during active convulsions.
Rationale:
A. Protecting the client from injury is the first priority during an active seizure. The nurse should ensure safety by lowering the bed, padding side rails, and removing nearby objects to prevent trauma. This minimizes risk of physical injury and protects against secondary complications such as head trauma or aspiration.
B. Restraining the client is contraindicated because it increases risk of musculoskeletal injury, fractures, and worsened agitation. Restraints do not stop seizure activity and may cause harm. They can worsen muscle contractions and increase risk of skeletal injury during uncontrolled movements.
C. Giving food during a seizure is unsafe due to loss of protective airway reflexes and high risk of aspiration. Oral intake is contraindicated until full recovery of consciousness. This increases risk of airway obstruction and aspiration pneumonia during altered neurologic status.
D. Inserting a tongue blade is contraindicated and can cause dental injury, oral trauma, or airway obstruction. It does not prevent tongue swallowing and may worsen injury. This practice increases risk of oral trauma and compromised airway patency during seizure activity.
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