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DYSRHYTHMIA BASIC A
Exam Preparation & Study Guide
2026 Edition
40 Original Practice Questions • Original Illustrated ECG Rhythm Strips • Full Rationales • Clinical Tips
Covering: Sinus Rhythms | PACs | PVCs | Atrial Fibrillation & Flutter | SVT | AV Heart Blocks | Ventricular Rhythms | ECG
Interpretation
Prepared as an original, independent study resource. Not affiliated with, endorsed by, or reproduced from Relias LLC or any proprietary examination.
, Dysrhythmia Basic A — 2026 Edition
How to Use This Guide
This study guide is designed to help nursing staff prepare for a Basic A–level dysrhythmia competency assessment.
Each section reviews the core electrophysiology and clinical significance of a rhythm category, followed by original
practice questions written to match the style, format, and difficulty of a foundational dysrhythmia recognition exam.
Every question includes four answer choices, the correct answer, and a rationale explaining the underlying reasoning.
Several questions are paired with an original, illustrative ECG rhythm strip generated specifically for this guide to
reinforce pattern recognition. A complete answer key is provided at the end of the guide for quick self-checking.
Suggested Study Approach
1) Read the category introduction and clinical tip before attempting its questions. 2) Attempt each question without
looking at the answer first. 3) Read the full rationale even when you answer correctly — the reasoning is where the
deeper understanding is built. 4) Revisit any category where you missed more than one question, focusing on the
underlying conduction pathway rather than memorizing the strip.
Clinical tip: The single most useful habit for dysrhythmia recognition is a consistent, systematic approach every time —
Rate → Regularity → P waves → PR interval → QRS width → Clinical correlation. Apply this same sequence to every
strip in this guide and on exam day.
Page 2
, Dysrhythmia Basic A — 2026 Edition
Table of Contents
How to Use This Guide 2
Sinus Rhythms 4
Premature Atrial Contractions (PACs) 7
Premature Ventricular Contractions (PVCs) 9
Atrial Fibrillation and Atrial Flutter 12
Supraventricular Tachycardia (SVT) 15
Atrioventricular (AV) Heart Blocks 17
Ventricular Rhythms 20
General ECG Interpretation Principles 23
Answer Key — Quick Reference 24
Page 3
DYSRHYTHMIA BASIC A
Exam Preparation & Study Guide
2026 Edition
40 Original Practice Questions • Original Illustrated ECG Rhythm Strips • Full Rationales • Clinical Tips
Covering: Sinus Rhythms | PACs | PVCs | Atrial Fibrillation & Flutter | SVT | AV Heart Blocks | Ventricular Rhythms | ECG
Interpretation
Prepared as an original, independent study resource. Not affiliated with, endorsed by, or reproduced from Relias LLC or any proprietary examination.
, Dysrhythmia Basic A — 2026 Edition
How to Use This Guide
This study guide is designed to help nursing staff prepare for a Basic A–level dysrhythmia competency assessment.
Each section reviews the core electrophysiology and clinical significance of a rhythm category, followed by original
practice questions written to match the style, format, and difficulty of a foundational dysrhythmia recognition exam.
Every question includes four answer choices, the correct answer, and a rationale explaining the underlying reasoning.
Several questions are paired with an original, illustrative ECG rhythm strip generated specifically for this guide to
reinforce pattern recognition. A complete answer key is provided at the end of the guide for quick self-checking.
Suggested Study Approach
1) Read the category introduction and clinical tip before attempting its questions. 2) Attempt each question without
looking at the answer first. 3) Read the full rationale even when you answer correctly — the reasoning is where the
deeper understanding is built. 4) Revisit any category where you missed more than one question, focusing on the
underlying conduction pathway rather than memorizing the strip.
Clinical tip: The single most useful habit for dysrhythmia recognition is a consistent, systematic approach every time —
Rate → Regularity → P waves → PR interval → QRS width → Clinical correlation. Apply this same sequence to every
strip in this guide and on exam day.
Page 2
, Dysrhythmia Basic A — 2026 Edition
Table of Contents
How to Use This Guide 2
Sinus Rhythms 4
Premature Atrial Contractions (PACs) 7
Premature Ventricular Contractions (PVCs) 9
Atrial Fibrillation and Atrial Flutter 12
Supraventricular Tachycardia (SVT) 15
Atrioventricular (AV) Heart Blocks 17
Ventricular Rhythms 20
General ECG Interpretation Principles 23
Answer Key — Quick Reference 24
Page 3
