A nurse is assisting with the care of a client who has delirium. The client is disoriented and restless. Which of the following conditions should the nurse identify as a risk factor for delirium?

Choice A reason: Hypersomnia causes excessive sleep, not delirium’s acute confusion. It’s unrelated to the restlessness and disorientation seen in this client’s presentation.Choice B reason: High cholesterol affects vessels, not acute brain function. It’s a chronic risk, not a trigger for delirium’s sudden cognitive shift here.Choice C reason: UTIs in older adults often cause delirium via systemic inflammation and toxins. This matches the client’s disorientation and restlessness as a risk.Choice D reason: Amyloid plaque links to Alzheimer’s, a chronic condition. Delirium is acute; plaque doesn’t explain the sudden onset in this scenario.