The health care provider (hcp) has ordered intravenous mannitol for a child with a head injury. the best indicator that the drug has been effective is:

The answer would be: decreased intracranial pressure

Mannitol is a carbohydrate that used to decrease intracranial pressure. The drug is an osmotic diuretic that will induce urine production, makes the blood volume decreased. It also increases the osmotic pressure of the blood, makes it attract water to reverse edema in cells.