Which symptoms characterize hyperactive delirium?

• A. Restlessness, agitation, irritability & aggression
• B. Lethargy and slow speech
• C. Memory loss
• D. Depression

Answer: (C)

Hyperactive delirium is defined by increased arousal and motor activity. People often appear restless and agitated, can be irritable, and may show aggression or combative behavior. This contrasts with hypoactive delirium, where the person is quiet and withdrawn. While memory problems and inattention occur with delirium overall, they are not the specific hallmark of the hyperactive subtype. So restlessness, agitation, irritability, and aggression best characterize hyperactive delirium.