Question

When PVC's fall on the T-wave, occur in pairs, runs of 3 or more, or are multiform in nature, these conditions are called _____.

a) Ventricular tachycardia
b) Atrial fibrillation
c) Ventricular ectopy
d) Atrial flutter

Answer 1

Premature ventricular contractions that are multiform, in pairs, or in runs are known as ventricular ectopy, and when they occur rapidly, they can lead to ventricular tachycardia, a more serious type of arrhythmia.

Step-by-step explanation:

When premature ventricular contractions (PVCs) fall on the T-wave, occur in pairs, in runs of 3 or more, or are multiform, these conditions are collectively termed as ventricular ectopy. Specifically, when PVCs occur rapidly one after another, it may progress to ventricular tachycardia, which is a more serious condition. Ventricular ectopy is a broad term used for these premature beats originating from the ventricles, which can be seen in an electrocardiogram (ECG) as an abnormal heart rhythm. In comparison, atrial fibrillation is characterized by an abnormal electrical pattern prior to the QRS complex and an increased frequency between QRS complexes, while atrial flutter is a type of supraventricular tachycardia with a distinctive sawtooth pattern in the ECG tracing.