A nurse is preparing to administer mannitol IV to a client.The nurse should monitor the client for which of the following manifestations as an expected outcome of this medication?

Choice A rationaleMannitol is an osmotic diuretic that doesn't directly impact thyroid function. Its primary role is to increase osmotic pressure in the kidneys, promoting diuresis to reduce fluid volume, particularly in cases of cerebral edema.Choice B rationaleMannitol does not have antiarrhythmic properties; its effects are primarily on osmotic diuresis, which reduces intracranial pressure. Atrial flutter is managed with medications such as beta-blockers or calcium channel blockers that directly affect cardiac rhythm.Choice C rationaleMannitol's osmotic diuretic effect increases renal excretion of water, reducing intracranial pressure by drawing fluid out of the brain tissue into the bloodstream. This mechanism alleviates symptoms of increased intracranial pressure, such as headache and nausea.Choice D rationaleMannitol administration doesn't influence hemoglobin levels directly. It affects fluid balance by increasing urine output, not by altering erythropoiesis or blood composition. Hemoglobin levels are more affected by factors like anemia or hydration status.