Relias Dysrhythmia Basic A Exam (Latest 2025): 100% Correct Answers & Detailed Rationales

Relias Dysrhythmia Basic A Exam (Latest
2025): 100% Correct Answers & Detailed
Rationales




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
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