A Patient Is Demonstrating Second-Degree Heart Block (Wenckebach [Type I])

A patient is demonstrating second-degree heart block (Wenckebach [type I]) . What characteristic of this rhythm should the nurse recognize?

A) Progressive lengthening of the PR interval until a QRS is dropped
B) Prolonged PR interval greater than 0.22
C) Complete disassociation of the atria and ventricles
D) Consistent PR interval with occasional dropped QRS complexes

Correct Answer:

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