What does PVC stand for in the context of EKG readings?

In the context of EKG readings, PVC stands for Premature Ventricular Contraction. PVCs are abnormal heartbeats that originate in the ventricles rather than the atria. They occur when the ventricles contract prematurely, resulting in a heartbeat that occurs before the normal rhythm. This can lead to a variety of symptoms, including palpitations, a feeling of skipped beats, or, in some cases, can be asymptomatic.

Understanding PVCs is crucial in the emergency setting because while they can be benign, they may also indicate underlying heart conditions, particularly if they are frequent or occur in the context of other cardiac issues. The interpretation of EKGs often requires recognizing various types of contractions, where distinguishing between atrial and ventricular events is vital for accurate diagnosis and appropriate management. Each of the other options refers to different types of contractions but does not accurately describe the phenomena associated with PVCs.