RELIAS Dysrhythmia Basic A – Relias Healthcare – 2026 Exam Preparation Guide with Graded Questions and Correct Answers

RELIAS DYSRHYTHMIA BASIC A EXAM
PREPARATION GUIDE QUESTIONS AND
CORRECT ANSWERS ALREADY GRADED A+
2026




Normal sinus rhythm ANSWER >> Regular

Rate: 60-100

P Wave: Present, upright

PR Interval: 0.12-0.20 sec

QRS: <0.12 sec

Sinus Bradycardia ANSWER >> Regular

Rate: <60

P Wave: Present, upright

PR Interval: 0.12-0.20 sec

QRS: <0.12 sec

Sinus Tachycardia ANSWER >> Regular

Rate: 100-150

P Wave: Present, upright

PR Interval: 0.12-0.20 sec
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, QRS: <0.12 sec

Premature Atrial Contraction 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 ANSWER >> IRREGULAR

Atrial rate: UNMEASURABLE

Ventricular rate: variable

P wave: unable to see

PR Interval: N/A

QRS: <0.12 sec

A fib RVR ANSWER >> IRREGULAR

Ventricular rate: 100-175

P wave: unable to see

PR Interval: N/A

QRS <0.12 sec

Atrial Flutter 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 ANSWER >> Regular

Rate: 150-350

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