Relias Dysrhythmia Basic A: ECG Rhythm Identification and Interpretation Guide

Relias Dysrhythmia Basic A: ECG Rhythm
Identification and Interpretation Guide



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

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

A fib RVR

IRREGULAR
Ventricular rate: 100-175
P wave: unable to see
PR Interval: N/A
QRS <0.12 sec

Atrial Flutter

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

Regular
Rate: 150-350
P wave: Hidden in QRS or T wave
PR: unable to determine
QRS: <0.12 sec

Junctional Rhythm

Regular
Rate: 40-60
P Wave: ABSENT or INVERTED
PR Interval: None or <0.12
QRS: <0.12 sec

Accelerated Junctional Rhythm

Regular
Rate: 60-100
P Wave: NONE or INVERTED
PR Interval: None or <0.12
QRS: <0.12 sec
Junctional Tachycardia