Which cardiac arrhythmia can be either acquired or congenital and can spontaneously disappear on its own or lead to ventricular fibrillation.. Torsades de pointes

Which cardiac arrhythmia can be either acquired or congenital and can spontaneously disappear on its own or lead to ventricular fibrillation?

A- Wenckebach

B- Premature arterial contractions

C- Torsades de pointes

D- Premature ventricular contractions

Correct Response: C

Torsades de pointes, a polymorphic ventricular tachycardia, can be either congenital or acquired; at times, it can spontaneously terminate but it frequently leads to ventricular fibrillation.

In some cases cardiac death can occur with the first episode.

All of the other cardiac arrhythmias, or dysrhythmias, are acquired and not congenital.