Question 1: A rhythm strip shows a rate of 88 bpm, regular rhythm, normal P waves, PR

interval 0.16 seconds, QRS 0.08 seconds. What is the rhythm?

A) Atrial fibrillation

B) Normal sinus rhythm

C) Sinus tachycardia

D) Sinus bradycardia

Rationale: Rate 60–100 bpm, regular rhythm, normal P waves, PR 0.12–0.20 s, QRS <0.12 s

indicate normal sinus rhythm.

Question 2: A patient has a rhythm with no identifiable P waves, irregular rhythm, and QRS

0.10 seconds. What is the rhythm?

A) At...
Relias Advanced Dysrhythmia Exam A | 2025–2026 Edition
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