In third-degree AV block,if the block is at the AV node
A)the QRS will be wide and bizarre.
B)the P waves will be tall and pointy.
C)the QRS will be narrow.
D)there will be no P waves.

Question

Quizplus · Accepted Answer

In third-degree AV block, if the block is at the AV node, the ventricles are typically paced by a junctional escape rhythm, which uses the His-Purkinje system for ventricular activation, resulting in a narrow QRS complex.

In Third-Degree AV Block,if the Block Is at the AV