Which option describes the hallmark of Delirium Tremens?

• A. Onset within hours; mild tremor
• B. Onset after a month
• C. Onset 2-5 days; delirium with tachycardia, hypertension, and fever
• D. No fever

Answer: (C)

Delirium tremens is the severe form of alcohol withdrawal that features delirium with autonomic hyperactivity. It typically begins several days after the last drink, usually about 2–5 days, and presents with delirium (confusion and fluctuating consciousness) along with signs like tachycardia, hypertension, and fever. This combination—delirium plus autonomic instability—is the defining pattern, which is why onset in 2–5 days with delirium and autonomic signs best fits the hallmark.

The other patterns don’t fit: onset within hours with only a mild tremor points to a milder withdrawal without delirium; onset after a month would not be withdrawal; and no fever would miss the autonomic signs that accompany delirium tremens.