Question

The drug of choice for Torsades de pointes treatment is:

• A. \( \text{Sotalol} \)
• B. \( \text{Ibutilide} \)
• C. \( \text{Disopyramide} \)
• D. \( \text{Magnesium} \)

Hint:

Intravenous magnesium is the first-line therapy for Torsades de pointes, even if serum magnesium levels are normal.

Answer 1

The Correct Option is D

Torsades de pointes is a life-threatening polymorphic ventricular tachycardia associated with prolonged QT intervals. The first-line treatment is intravenous magnesium sulfate, which stabilizes the cardiac membrane and prevents early afterdepolarizations. Magnesium is preferred over antiarrhythmic drugs like sotalol or ibutilide, which can further prolong the QT interval and exacerbate the condition.