The PMHNP works on an inpatient geriatric psychiatric unit. She knows that which of the following features is commonly present in Lewy body dementia?

Choice A reason: This choice is incorrect because Lewy body dementia does involve cognitive decline, but sleepwalking is not a characteristic feature. The hallmark symptoms include fluctuating cognition, visual hallucinations, and parkinsonism. Choice B reason: This choice is incorrect because Lewy body dementia is associated with both motor abnormalities and a higher risk of psychiatric symptoms, including depression and hallucinations, not a low incidence of these. Choice C reason: This choice is correct because recurrent visual hallucinations and sensitivity to antipsychotic medications are hallmark features of Lewy body dementia. Patients often have parkinsonian motor symptoms and can deteriorate rapidly when exposed to antipsychotics. Choice D reason: This choice is partially correct in describing some aspects of dementia but is more representative of Alzheimer’s disease or other neurodegenerative disorders. It does not capture the specific hallmark features of Lewy body dementia.