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ECG

Description:	ECG (JCMC)
Category:	Paramedic/EMT
Created by:	cabbie911 on 2005-02-06

Dysrhythmia	Rate	Rhythm	P Waves	PR Interval	QRS Complex
Sinus Bradycardia	<60	Regular	Upright & Normal	Normal	Normal
Sinus Tachycardia	>100	Regular	Upright & Normal	Normal	Normal
Sinus Dysrhythmia	60 - 100	Irregular	Upright & Normal	Normal	Normal
Sinus Arrest	Normal to slow	Irregular	Upright & Normal	Normal	Normal
First Degree AV Block	Depends on underlying rhythm	Usually regular	Normal	>0.20 sec	Usually <0.12 sec
Type I Second Degree AV Block	Atrial - normal, ventricular – normal to slow	atrial – regular, ventricular -- irregular	Normal, some P waves not followed by QRS complex	Increases until QRS drops, then repeats	Usually <0.12 sec
Type II Second Degree AV Block	Atrial - normal, ventricular – normal to slow	may be regular or irregular	Normal, some P waves not followed by QRS complex	Constant for conducted beats, may be >0.12 sec.	Normal or >0.12 sec
Third Degree AV Block	Atrial - normal, ventricular – 40 - 60	Both atrial and ventricular are regular	Normal with no correlation to QRS complex	No relation to QRS complex	0.12 sec or greater
Premature Junctional Contractions	Depends on underlying rhythm	Depends on underlying rhythm	Inverted, may occur after QRS complex	Normal if P wave occurs before QRS complex	Usually normal
Junctional Escape Complexes and Rhythms	40 - 60	Irregular in single occurrence; regular in escape rhythm	Inverted, may occur after QRS complex	Normal if P wave occurs before QRS complex	Usually normal
Accelerated Junction Rhythm	60 -100	Regular	Inverted, may occur after QRS complex	Normal if P wave occurs before QRS complex	Normal
Paroxysmal Junctional Tachycardia	100 - 180	Regular	Inverted, may occur after QRS complex	Normal if P wave occurs before QRS complex	Normal

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