When an ectopic falls during the vulnerable phase of the cardiac cycle, it is called:
A)escape mechanism.
B)phased ectopic.
C)vulnerability.
D)R on T phenomenon.

Question

Quizplus · Accepted Answer

When an ectopic beat occurs during the vulnerable period of the cardiac cycle, it can trigger a premature ventricular contraction (PVC) and cause a more serious arrhythmia known as the R on T phenomenon. This is because the PVC occurs during the T wave of the preceding beat, which can cause reentry and potentially lead to ventricular fibrillation.

When an Ectopic Falls During the Vulnerable Phase of the Cardiac