Heart block, in which a conduction delay at the AV node results in intermittent missed ventricular contractions, is called:
A) first-degree block.
B) second-degree block.
C) bundle-branch block.
D) total heart block.

Question

Quizplus · Accepted Answer

Second-degree block is characterized by intermittent failure of conduction through the AV node, leading to missed ventricular contractions.

Heart Block, in Which a Conduction Delay at the AV