The type of AV block characterized by two P waves to each QRS and a constant PR interval is
A)First-degree AV block.
B)Third-degree AV block.
C)Wenckebach.
D)2:1 AV block.

Question

Quizplus · Accepted Answer

A 2:1 AV block is characterized by every other P wave being conducted to the ventricles with a constant PR interval. This means that the P wave and QRS complex are dissociated, with two P waves present for every QRS complex. First-degree AV block has a prolonged PR interval, Wenckebach has a progressively lengthening PR interval before a blocked QRS, and third-degree AV block has no association between P waves and QRS complexes.

The Type of AV Block Characterized by Two P Waves