Relias Dysrhythmia Basic A Exam (Detailed Answers & Illustrations) 2026/2027 (THE ULTIMATE GUIDE)

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Relias Dysrhythmia Basic A Exam
Detailed questions And Answers
with Illustrations



Sinus Tachycardia

Regular

Rate: 100-150

P Wave: Present, upright

PR Interval: 0.12-0.20 sec

QRS: <0.12 sec




Premature Atrial Contraction

IRREGULAR

Rate: depends on underlying rhythm

P wave: Present or hidden in T wave

PR Interval: 0.12-0.20 sec

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QRS: <0.12 sec




Atrial Fibrillation

IRREGULAR

Atrial rate: UNMEASURABLE

Ventricular rate: variable

P wave: unable to see

PR Interval: N/A

QRS: <0.12 sec




Normal sinus rhythm

Regular

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Rate: 60-100

P Wave: Present, upright

PR Interval: 0.12-0.20

sec QRS: <0.12 sec




Sinus Bradycardia

Regular

Rate:

<60

P Wave: Present, upright

PR Interval: 0.12-0.20

sec QRS: <0.12 sec




A fib RVR

IRREGULAR

Ventricular rate: 100-175