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Relias Dysrhythmia Basic A questions and answers A+ Grade

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This study guide covers the essential concepts assessed in the Relias Dysrhythmia Basic A course, including cardiac anatomy and physiology, ECG fundamentals, rhythm interpretation, common dysrhythmias, heart blocks, and basic clinical interventions. It features comprehensive practice questions with detailed answers to reinforce rhythm recognition skills and improve assessment readiness. The material is organized for efficient review and is ideal for nurses, healthcare professionals, and students preparing for Relias competency assessments or cardiac monitoring evaluations.

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Relias Dysrhythmia Basic A questions and
answers 2026\2027 A+ Grade

Normal sinus rhythm
- correct answer Regular

Rate: 60-100

P Wave: Present, upright

PR Interval: 0.12-0.20 sec

QRS: <0.12 sec



Sinus Bradycardia
- correct answer Regular

Rate: <60

P Wave: Present, upright

PR Interval: 0.12-0.20 sec

QRS: <0.12 sec



Sinus Tachycardia
- correct answer Regular

Rate: 100-150

P Wave: Present, upright

PR Interval: 0.12-0.20 sec

QRS: <0.12 sec



Premature Atrial Contraction
- correct answer IRREGULAR

Rate: depends on underlying rhythm

P wave: Present or hidden in T wave

, PR Interval: 0.12-0.20 sec

QRS: <0.12 sec



Atrial Fibrillation
- correct answer IRREGULAR

Atrial rate: UNMEASURABLE

Ventricular rate: variable

P wave: unable to see

PR Interval: N/A

QRS: <0.12 sec



A fib RVR
- correct answer IRREGULAR

Ventricular rate: 100-175

P wave: unable to see
PR Interval: N/A

QRS <0.12 sec



Atrial Flutter
- correct answer Usually REGULAR can be irregular

Atrial rate: 250-350

Ventricular rate: variable BUT < atrial rate

P Wave: Flutter

PR Interval: N/A

QRS: <0.12 sec



Supraventricular Tachycardia
- correct answer Regular

Rate: 150-350

P wave: Hidden in QRS or T wave

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