A nurse is planning to teach a group of nurses about the uses of mannitol. Which of the following client conditions is an indication for administering this medication?

C. Mannitol is often used to reduce intraocular pressure in conditions such as acute glaucoma or before ophthalmic surgery. It works by creating an osmotic gradient that draws fluid out of the eye, reducing pressure and protecting optic nerve function.A Deep-vein thrombosis requires anticoagulation therapy to prevent clot propagation and embolization, not osmotic diuretics like mannitol.B. Heart failure management focuses on improving cardiac function and relieving symptoms such as fluid overload through medications like diuretics (e.g., furosemide), ACE inhibitors, and beta-blockers, not osmotic diuretics like mannitol.D. Mannitol is used to reduce intracranial pressure in conditions such as traumatic brain injury, intracranial hemorrhage, or brain tumors. By increasing serum osmolality, mannitol draws water out of brain tissue, reducing cerebral edema and intracranial pressure. However, it is important to note that mannitol should not be used in cases of active intracranial bleeding except during craniotomy.