A 44-year-old patient presents to the emergency department with a closed head injury after a motor-vehicle collision. The patient exhibits decorticate posturing and has a Glasgow Coma Scale score of 8. Head CT shows a subdural hematoma. Which nursing intervention should be prioritized to reduce the patient's increased intracranial pressure?
Administer a stool softener to prevent Valsalva-induced pressure spikes during defecation.
Elevate the head of the bed to approximately 30° while maintaining cervical-spine alignment.
Provide a quiet, low-stimulation environment to reduce cerebral metabolic demand.
Immediately give an osmotic diuretic to draw fluid from brain tissue.
Elevating the head of the bed about 30° (while maintaining cervical-spine precautions if needed) promotes jugular venous drainage, decreases intracranial blood volume, and thereby lowers intracranial pressure. Creating a quiet environment and giving stool softeners can help prevent secondary spikes in pressure but do not address the immediate physiologic problem. Osmotic diuretics such as mannitol effectively reduce cerebral edema but require a provider order; until that order is in place, head elevation is the fastest nursing action to initiate.
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