The spouse of an older client experiencing delirium is at the client's bedside. The nurse is providing an update to the spouse regarding the client's plan of care. Which of the following responses by the spouse indicates a need for further teaching?

A. Dopamine: Dopamine is a catecholamine often used to increase blood pressure and cardiac output in hypotensive states. It does not directly reduce intracranial pressure (ICP).

B. Mannitol: Mannitol is an osmotic diuretic commonly used to reduce intracranial pressure in clients with conditions such as subarachnoid hemorrhage, traumatic brain injury, or cerebral edema. It works by drawing fluid from brain tissue into the bloodstream, thereby reducing cerebral edema and ICP.

C. Nicardipine: Nicardipine is a calcium channel blocker used primarily to lower blood pressure in hypertensive emergencies. While it can indirectly impact intracranial pressure by reducing cerebral perfusion pressure, its primary mechanism of action is not targeted at reducing ICP.

D. Phenytoin: Phenytoin is an antiepileptic medication used to prevent and control seizures. While it may be indicated in clients who have experienced a subarachnoid hemorrhage to prevent seizures, it does not directly reduce intracranial pressure.

A. "I can't get out of bed because the room is spinning": The sensation of vertigo, or the perception of spinning or movement when there is none, is a hallmark symptom of Meniere's disease. This sensation is often severe and can be debilitating, leading to difficulty with balance and mobility. Therefore, the client's statement indicating that they cannot get out of bed due to the room spinning is consistent with manifestations of Meniere's disease.

B. "I did feel some fluid dripping from my ear when I laid down": While fluid leakage from the ear can be a symptom of various ear conditions, such as otitis externa or otitis media, it is not typically associated with Meniere's disease. Meniere's disease is characterized by recurrent episodes of vertigo, hearing loss, tinnitus, and a feeling of fullness or pressure in the ear, rather than fluid leakage.

C. "Sometimes I feel slightly dizzy when I am in a loud restaurant": Feeling slightly dizzy in a loud environment may suggest sensitivity to noise (phonophobia) or a mild form of dizziness such as disequilibrium, but it is not specific to Meniere's disease. Meniere's disease typically presents with severe episodes of vertigo rather than mild dizziness.

D. "I often feel like I have cotton balls in my ears": The sensation of having cotton balls in the ears may indicate a feeling of fullness or pressure in the ears, which is a common symptom of Meniere's disease. However, this symptom alone is not sufficient to diagnose Meniere's disease, as it can also occur in other conditions affecting the middle ear, such as eustachian tube dysfunction or otitis media. Additionally, Meniere's disease is primarily characterized by vertigo, not just ear fullness or pressure.