2025/2026
55 Verified Questions and Correct Answers | A+ Graded
Subtitle: Verified Questions & A+ Graded Answers
2025/2026
, Relias Dysrhythmia Basic A Test 2025/2026
Section 1: Exam Questions
Question 1: An ECG strip shows a regular rhythm with a heart rate of 48 bpm, P waves before
each QRS, and a PR interval of 0.16 seconds. What is the rhythm?
A. Sinus tachycardia.
B. Sinus bradycardia.
C. Atrial fibrillation.
D. First-degree AV block.
Rationale: A heart rate of 48 bpm with regular P waves, normal PR interval (0.12–0.20 s), and
P before each QRS indicates sinus bradycardia.
Question 2: A client’s ECG shows a heart rate of 120 bpm, regular rhythm, and P waves before
each QRS. What is the rhythm?
A. Sinus tachycardia.
B. Supraventricular tachycardia.
C. Atrial flutter.
D. Ventricular tachycardia.
Rationale: A regular rhythm with a rate of 120 bpm and P waves before each QRS is charac-
teristic of sinus tachycardia.
Question 3: An ECG strip shows no discernible P waves, irregular QRS complexes, and a heart
rate of 100 bpm. What is the rhythm?
A. Sinus arrhythmia.
B. Atrial fibrillation.
C. Atrial flutter.
D. Junctional rhythm.
Rationale: Atrial fibrillation is identified by absent P waves and irregular QRS complexes due
to chaotic atrial activity.
Question 4: A client with sinus bradycardia (HR 45 bpm) is asymptomatic. What is the nurse’s
priority action?
A. Administer atropine.
B. Monitor the client.
C. Prepare for pacing.
D. Notify the provider immediately.
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