Relias Dysrhythmia Basic A Exam 2025–2026: Detailed Questions & Answers with ECG Illustrations"

Relias Dysrhythmia Basic A Exam 2025-2026
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

,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

, 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