Pulseless torsades should be defibrillated. Intravenous magnesium is the first-line pharmacologic therapy in Torsades de Pointes. Magnesium has been shown to stabilize the cardiac membrane, though the exact mechanism is unknown.

Do you do CPR for torsades de pointes?

Consider magnesium for torsades de pointes associated with a long QT interval (see below). You should administer the drug during CPR, as soon as possible after rhythm analysis. If a nonshockable rhythm is present and the rhythm is organized (complexes appear regular or narrow), try to palpate a pulse (see Box 12).

Is torsades V fib or V tach?

Torsades de Pointes is a specific type of ventricular tachycardia, or fast heart rhythm that begins in your heart ventricles.