In 2:1 AV block, the PR interval _____.
A) shortens
B) lengthens
C) is absent
D) remains constant

Name: In 2:1 AV block, the PR interval _____. A) shortens B) lengthens C) is absent D) remains constant
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Question

Quizplus · Accepted Answer

Second-degree 2:1 AV block is characterized by P waves that are normal in size and shape, but every other P wave is not followed by a QRS. The atrial rate is twice the ventricular rate. The PR interval for the conducted beats is constant.

In 2:1 AV Block, the PR Interval _____