Which of these arrhythmias is due to a heartbeat originating in the ventricles that occurs early in the cycle and is followed by a pause before the next cycle?
A. Atrial fibrillation
B. PVCs
C. Ventricular fibrillation
D. Bundle branch block
E. Ventricular tachycardia
B. PVCs
Premature ventricular contractions occur early in the cycle—before the regular heartbeat—and are followed by a pause before the next cycle.
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