Dysrhythmias: Interpretation and Nursing Actions · NCLEX Exam

What rhythm is described by a prolonged PR interval (>0.20 sec) with every P wave followed by a QRS complex?

  1. First‐degree AV block
  2. Second‐degree AV block type I (Wenckebach)
  3. Third‐degree AV block
  4. Ventricular escape rhythm
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Correct answer: First‐degree AV block

First‐degree AV block is identified by a consistently prolonged PR interval with each atrial impulse conducted; it often requires monitoring rather than immediate intervention.

Difficulty: Medium Question 2 of 20

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