The most diagnostic feature of Wenckebach is:
A)both atrial and ventricular rates are regular.
B)the PRIs get progressively longer until one is dropped.
C)the PRI is consistently regular.
D)there are always 2 P waves for every QRS complex.

Question

Quizplus · Accepted Answer

Wenckebach is characterized by a progressive lengthening of the PRI until a beat is dropped, followed by a shortening of the PRI for the next cycle. Therefore, the most diagnostic feature of Wenckebach is the progressive lengthening of the PRIs.

The Most Diagnostic Feature of Wenckebach Is