Delirium Tremens typically begins after how many days following last drink?

• A. Onset within hours; mild tremor only
• B. Onset after a month; stable vitals
• C. No fever
• D. Onset: 2-5 days after (generally 72 hours); delirium, hallucinations, agitation, abnormal vital signs, fever, diaphoresis

Answer: (D)

Delirium tremens is the severe end of alcohol withdrawal that follows cessation in a person with chronic dependence. The timing is typically a few days after the last drink, usually around 72 hours, but it can begin anywhere from about 2 to 5 days. That window reflects peak CNS and autonomic hyperactivity, so patients commonly show delirium, perceptual disturbances such as hallucinations, marked agitation, and abnormal vital signs including tachycardia, hypertension, fever, and heavy sweating. Fever and autonomic instability are hallmark features. So, the description of onset 2-5 days after the last drink, with delirium, hallucinations, agitation, abnormal vital signs, fever, and diaphoresis, best matches delirium tremens. The other timelines described do not fit this syndrome: it does not typically start within hours with only a mild tremor, nor does it occur after a month with stable vitals, nor is fever absence consistent with the full DT picture. This presentation is a medical emergency requiring prompt treatment.