Delirium is best described as

Delirium is best described as

• A. Dementia
• B. Delirium
• C. Schizophrenia
• D. Depression

Answer: (B)

Delirium is an acute, fluctuating disturbance of consciousness and attention, accompanied by cognitive changes such as disorientation and memory problems. This onset is rapid—often over hours to days—and the level of alertness can swing throughout the day. It is usually caused by an underlying medical condition, medication effect, or substance withdrawal, and it tends to improve when the underlying issue is treated. That’s why delirium best fits the description here. Dementia, in contrast, is a chronic, progressive decline in multiple cognitive domains with a more stable level of consciousness early on. Schizophrenia involves chronic psychotic symptoms like delusions and hallucinations rather than an acute disturbance of attention and awareness. Depression centers on mood symptoms and may include cognitive complaints, but it does not typically present as an acute, fluctuating disturbance of consciousness and attention.

Delirium is an acute, fluctuating disturbance of consciousness and attention, accompanied by cognitive changes such as disorientation and memory problems. This onset is rapid—often over hours to days—and the level of alertness can swing throughout the day. It is usually caused by an underlying medical condition, medication effect, or substance withdrawal, and it tends to improve when the underlying issue is treated.

That’s why delirium best fits the description here. Dementia, in contrast, is a chronic, progressive decline in multiple cognitive domains with a more stable level of consciousness early on. Schizophrenia involves chronic psychotic symptoms like delusions and hallucinations rather than an acute disturbance of attention and awareness. Depression centers on mood symptoms and may include cognitive complaints, but it does not typically present as an acute, fluctuating disturbance of consciousness and attention.