Relias Dysrhythmia Basic A questions and answers A+ Grade

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