Delirium that develops after hospital admission is referred to as what?

• A. Hospital Acquired Delirium
• B. Postoperative Delirium
• C. Acute Delirium
• D. Chronic Delirium

Answer: (A)

Delirium that develops after a patient has been admitted to the hospital is described as hospital-acquired delirium. This term focuses on the onset during the hospital stay, signaling that the delirium emerged after admission rather than being present on arrival. It helps guide attention to hospital-related risk factors such as medications, infections, dehydration, sleep disturbance, immobility, and sensory issues, which are common targets for prevention and management in the inpatient setting.

Postoperative delirium refers specifically to delirium occurring after a surgical procedure, which is a subset of hospital-associated delirium but not the general descriptor asked for. Acute delirium describes sudden onset in general terms but doesn’t specify where it began. Chronic delirium isn’t a standard term, since delirium is typically an acute, fluctuating condition rather than chronic.