Define the term "premature ventricular contraction" (PVC).

Prepare for the Advanced Dysrhythmias Exam. Study with practice questions and detailed explanations to enhance your understanding of complex arrhythmias. Boost your confidence and get exam-ready!

Premature ventricular contraction (PVC) is characterized as an early heartbeat that originates in the ventricles of the heart. This abnormal electrical impulse arises from ectopic foci in the ventricular myocardium, leading to a contraction that occurs before the next expected normal beat. The result is a disrupted heart rhythm, which can sometimes be perceived as a skipped beat by the individual experiencing PVCs.

The key component of the definition relates to the origin of the contraction; recognizing that PVCs are ventricular in nature is crucial for understanding their implications in cardiac health. They often occur in healthy individuals without any underlying heart conditions but can also signal potential issues when occurring frequently or in conjunction with other symptoms.

Understanding the definition of PVCs assists in diagnosing and managing various cardiac conditions and can influence treatment decisions based on the frequency and context of their occurrence.

Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy