A premature ventricular contraction (PVC) can be identified by which of the following?
1) There is no P wave.
2) The QRS is wide.
3) The QRS looks normal.
4) The heart rate is altered.
A)1
B)3, 4
C)1, 2, 4
D)1, 3, 4

Question

Quizplus · Accepted Answer

PVCs are characterized by the absence of a P wave before the ventricular contraction (1), a wider QRS complex due to the abnormal ventricular depolarization (2), and they can alter the heart's normal rhythm, affecting the heart rate (4).

A Premature Ventricular Contraction (PVC) Can Be Identified by Which