Which characteristic describes acute illness?

• A. Lasts longer than six months and is chronic.
• B. Usually has a short duration and is severe; symptoms appear abruptly.
• C. Always requires hospitalization.
• D. Is primarily a mental health condition.

Answer: (B)

Acute illness is defined by a rapid onset of symptoms that are usually severe and last for a short period. This describes a condition that comes on abruptly and tends to resolve quickly, often with appropriate treatment. The idea that it lasts longer than six months describes chronic illness, not acute. The notion that it always requires hospitalization isn’t accurate—many acute illnesses are treated on an outpatient basis. And acute illness isn’t limited to mental health conditions; it can be physical as well. So the description of a short duration with abrupt, severe symptoms best captures what acute illness means.