The nurse is caring for several patients in the Intensive Care Unit (ICU). Which of the following patients is at the greatest risk of anoxic brain injury?
A patient who was in an assault resulting in basilar skull fracture.
A patient who was found face down in water for an unknown length of time.
A patient who suffered an epidural or subdural hematoma.
A patient who experienced prolonged seizures without regaining consciousness.
The Correct Answer is B
Choice A rationale
Basilar skull fractures can lead to cerebral injuries and CSF leaks, but do not typically cause anoxic brain injury unless they compromise oxygenation or cause cerebral edema severely reducing blood flow.
Choice B rationale
Prolonged submersion compromises oxygen delivery, leading to diffuse cerebral hypoxia or anoxia, the primary cause of brain injury in drowning victims due to interruption of arterial oxygenation over unknown durations.
Choice C rationale
Epidural or subdural hematomas elevate intracranial pressure and compress brain tissue, but they are not as immediately hypoxic as situations involving complete oxygen deprivation like submersion.
Choice D rationale
Prolonged seizures, or status epilepticus, may disrupt normal metabolic processes, potentially causing neuronal injury. However, primary hypoxia is generally less pronounced than in submersion cases.
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Correct Answer is C
Explanation
Choice A rationale
IV fluid bolus may address hypotension but is not the first priority. Symptoms of dizziness and diaphoresis in a spinal cord injury patient suggest autonomic dysreflexia or orthostatic hypotension requiring positional changes first.
Choice B rationale
Rescheduling therapy does not address the acute symptoms the patient is experiencing. Immediate action to manage dizziness and diaphoresis, such as altering body position, is required to stabilize the patient.
Choice C rationale
Lowering the head of the bed counters orthostatic hypotension, a common issue in spinal cord injury patients. Obtaining vital signs identifies the underlying cause and guides further interventions.
Choice D rationale
Bladder distention can trigger autonomic dysreflexia, but without evidence of urinary retention, prioritizing positional adjustments is more urgent to alleviate symptoms of dizziness and stabilize hemodynamics.
Correct Answer is C
Explanation
Choice A rationale
Soft restraints are utilized for agitation but are not prioritized in epilepsy care. Emergency equipment like suction ensures airway safety during seizures.
Choice B rationale
Glasgow Coma Scale evaluates neurological function but is less relevant for epilepsy management compared to essential tools like suction equipment for airway protection.
Choice C rationale
Suction equipment and oxygen are vital in epilepsy management to clear secretions and maintain oxygenation during seizures. Patent IV access allows rapid administration of emergency medications.
Choice D rationale
Dextrose infusion is used to treat hypoglycemia rather than seizures. Epilepsy care prioritizes tools like suction and oxygen for immediate seizure-related complications. .
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