The assessment indicating that mannitol therapy for cerebral edema is effective in a patient with increased intracranial pressure (ICP) is:
1. increased blood pressure.
2. increased urinary output.
3. decreased pulse.
4. widening pulse pressure.
2
Mannitol is a hyperosmolar diuretic that draws fluid from brain tissue into the bloodstream, which is then excreted by the kidneys. Decreasing pulse and widening pulse pressure indi-cate increased ICP.
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