The most usual form of block results from excessive conduction delay in the AV node and is termed:
A) third-degree block.
B) second-degree block type I.
C) second-degree block type II.
D) first-degree block.

Question

Quizplus · Accepted Answer

First-degree block is characterized by a prolonged conduction delay in the AV node, leading to a consistently prolonged PR interval on an ECG.

The Most Usual Form of Block Results from Excessive Conduction