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?

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Premature ventricular contractions (PVCs) can cause a heartbeat to originate in the ventricles early in the cycle, followed by a pause before the next cycle. Atrial fibrillation is characterized by a rapid and chaotic heartbeat originating in the atria, while ventricular fibrillation is a life-threatening arrhythmia where the ventricles quiver instead of contracting. Bundle branch block refers to a delay in electrical conduction in the specialized heart cells that coordinate heart rhythm, while ventricular tachycardia is an abnormally fast heartbeat that starts in the ventricles.

Which of These Arrhythmias Is Due to a Heartbeat Originating