## **Core Concept**
Delirium tremens (DT) is a severe form of alcohol withdrawal that involves sudden and severe mental or nervous system changes. It occurs most commonly in people with a history of heavy alcohol use who suddenly stop or significantly reduce their alcohol intake. The condition is characterized by a combination of symptoms that can be life-threatening.

## **Why the Correct Answer is Right**
The classic symptoms of delirium tremens include:
- **Tremors**: Shaking or trembling, often of the hands.
- **Altered mental status**: Confusion, disorientation, and altered level of consciousness.
- **Autonomic instability**: Tachycardia, hypertension, sweating, and fever.
- **Hallucinations**: Visual, auditory, or tactile hallucinations.

## **Why Each Wrong Option is Incorrect**
- **Option A:** Tremors are a classic symptom of delirium tremens, making it incorrect as the answer.
- **Option B:** Altered mental status, including confusion and disorientation, is a hallmark of DT, making it incorrect.
- **Option C:** Autonomic instability, manifesting as tachycardia, hypertension, etc., is also a characteristic feature, which makes it incorrect.
- **Option D:** While not explicitly listed, seizures are indeed associated with alcohol withdrawal but are not typically classified under the "classic symptoms" of delirium tremens itself but rather as part of the broader spectrum of alcohol withdrawal symptoms.

## **Clinical Pearl / High-Yield Fact**
A key clinical pearl is that delirium tremens usually occurs 48 to 72 hours after the last drink in individuals with a history of significant and prolonged alcohol use. Early recognition and treatment are crucial to prevent complications and reduce mortality.

## **Correct Answer:** D. Seizures