The term premature ventricular contraction refers to the condition where:
A) atrial muscle cells are stimulating additional cardiac contractions.
B) the ventricles contract spontaneously following a period without a stimulus.
C) additional contractions arise from ectopic foci in the ventricular muscle.
D) increased heart rate causes palpitations.

Question

Quizplus · Accepted Answer

Premature ventricular contractions (PVCs) occur when additional contractions arise from ectopic foci in the ventricular muscle, leading to early heartbeats originating in the ventricles.

The Term Premature Ventricular Contraction Refers to the Condition Where