PVC: The heart has a pacemaker (PM) or internal clock in the upper chambers (atria) that sends a signal to the lower chambers (ventricles) which is delayed so that the ventricles contract after the atria. Premature ventricular contractions (PVCs) can occur spontaneously or be triggered by adrenaline or drugs and are always followed by a compensatory pause to return the heart to its previous rhythm.
Answered 10/11/2018
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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