VERSION) | 2025/2026
35 Correct Verified Questions and Answers | A+ Graded | Basic Cardiac Rhythm
Identification
Overview
This revised 2025/2026 edition contains 35 verified questions and answers for the Relias
Dysrhythmia Basic Test, guaranteed to help you achieve an A+ grade. Ideal for nurses,
cardiac monitor technicians, and healthcare students preparing for dysrhythmia certification
exams. Aligned with NCLEX-RN® and ACLS protocols, it covers critical topics such as:
• Cardiac rhythm identification and EKG strip analysis
• Emergency interventions and patient safety
• Pharmacology and safe medication administration
• Ethical decision-making and patient rights
Updated to reflect current evidence-based practices per AACN and AHA guidelines.
Answer Format
All correct answers are clearly marked in bold green with detailed rhythm analysis and
clinical significance explanations.
Core Content Areas
• Normal Sinus Rhythm vs. Abnormalities (10 Qs)
• Lethal vs. Non-Lethal Rhythms (8 Qs)
• Atrial Fibrillation/Flutter (7 Qs)
• Ventricular Tachycardia/Fibrillation (6 Qs)
• Heart Blocks (1st, 2nd, 3rd Degree) (4 Qs)
Special Features
✓ Updated 2025/2026 test patterns
✓ Priority action guidelines for critical rhythms
✓ Test-taking strategies specific to Relias exams
RELIAS DYSRHYTHMIA BASIC TEST (REVISED) 2025/2026
Normal Sinus Rhythm vs. Abnormalities (10 Questions)
Question 1
An EKG strip shows a regular rhythm, heart rate of 80 bpm, P wave before each QRS, and
PR interval of 0.16 seconds. What is the rhythm?
A. Atrial fibrillation
B. Normal sinus rhythm
, C. Junctional rhythm
D. Ventricular tachycardia
Rationale: Normal sinus rhythm is defined by a regular rhythm, heart rate 60–100 bpm, P
wave before each QRS, and PR interval of 0.12–0.20 seconds, per ACLS guidelines.
Clinical Significance: Indicates normal cardiac conduction. No intervention needed unless
symptomatic.
Question 2
An EKG shows a heart rate of 110 bpm, regular rhythm, and normal P waves. What is the
rhythm?
A. Atrial flutter
B. Sinus tachycardia
C. Supraventricular tachycardia
D. Sinus bradycardia
Rationale: Sinus tachycardia has a regular rhythm, rate >100 bpm, and normal P waves, per
EKG interpretation standards.
Clinical Significance: Often caused by fever, pain, or hypovolemia. Treat the underlying
cause.
Question 3
A patient’s EKG shows a heart rate of 50 bpm with normal P waves and QRS complexes.
What is the rhythm?
A. Junctional rhythm
B. Sinus bradycardia
C. Atrial fibrillation
D. Third-degree AV block
Rationale: Sinus bradycardia has a rate <60 bpm with normal P waves and QRS, per EKG
standards.
Clinical Significance: May be benign in athletes; assess for symptoms like dizziness.
Question 4
An EKG shows irregular R-R intervals with normal P waves and a heart rate of 70 bpm.
What is the rhythm?
A. Atrial fibrillation
B. Sinus arrhythmia