A 21-year-old male was admitted to the emergency department following a high-speed motorcycle accident.
He was reported to be unconscious at the scene, but upon arrival he was awake and oriented with a Glasgow Coma Scale (GCS) of 15. Suddenly, he becomes unconscious and mental status deteriorates to a GCS of 8. The nurse anticipates which of the following injuries?
Subarachnoid hemorrhage.
Diffuse axonal injury.
Epidural hematoma.
Subdural hematoma.
The Correct Answer is C
Choice A rationale
Subarachnoid hemorrhage is less likely given the sudden decrease in consciousness. This type of injury typically results in severe headache or focal neurological deficits, not rapid mental decline.
Choice B rationale
Diffuse axonal injury usually presents with persistent unconsciousness rather than sudden deterioration. It results from widespread shearing forces and is less likely with the reported history.
Choice C rationale
Epidural hematoma often presents with a lucid interval followed by sudden neurological decline, as described in this case. Rapid accumulation of blood between the dura and skull can compress brain tissue.
Choice D rationale
Subdural hematoma tends to cause gradual neurological deterioration rather than a sudden decrease in Glasgow Coma Scale. This occurs due to slower venous bleeding. .
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["66.7"]
Explanation
Step 1 is (1600 mL ÷ 24 hours).
Answer is 66.7 mL/hr.
Correct Answer is B
Explanation
Choice A rationale
Fluid intake does not directly impact intraocular pressure. Management of glaucoma focuses on medications like eye drops and surgical interventions rather than restricting fluid intake.
Choice B rationale
Glaucoma treatments, including eye drops, aim to manage intraocular pressure. These medications are required lifelong to prevent optic nerve damage and preserve vision.
Choice C rationale
Excess salt impacts systemic blood pressure but does not directly influence intraocular pressure. Glaucoma management targets ocular pressure, not dietary sodium reduction.
Choice D rationale
Avoiding eye overuse may reduce strain but does not address intraocular pressure. Effective glaucoma treatment relies on pharmacological or surgical measures rather than activity limitation.
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