Cardiac Rhythms

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Regular Sinus Rhythm (RSR)
Rate:
Reg?:
P for every QRS:
P wave:
QRS:




Sinus Bradycardia
Rate:
Reg?:
P for every QRS:
P wave:
QRS:



Sinus Tachycardia
Rate:
Reg?:
P for every QRS:
P wave:
QRS:



Sinus Arrhythmia
Rate:
Reg?:
P for every QRS:
P wave:
QRS:



Regular Sinus Rhythm with Premature Atrial Contractions (NSR with PACs)
Rate:
Reg?:
P for every QRS:
P wave:
QRS:



NSR with First Degree AV Block
Rate:
Reg?:
P for every QRS:
P wave:
QRS:



Second Degree Block (Wenchebach or Mobitz I)
Rate:
Reg?:
P for every QRS:
P wave:
QRS:



Second Degree Block (Mobitz II)
Rate:
Reg?:
P for every QRS:
P wave:
QRS:



Third Degree Block ( complete heart block)
Rate:
Reg?:
P for every QRS:
P wave:
QRS:



Junctional Rhythm
Rate:
Reg?:
P for every QRS:
P wave:
QRS:



Accelerated Junctional Rhythm
Rate:
Reg?:
P for every QRS:
P wave:
QRS:



NSR with Premature Ventricular Contractions (NSR with PVCs)
Rate:
Reg?:
P for every QRS:
P wave:
QRS:



Accelerated Idioventricular Rhythm (AIVR)
Rate:
Reg?:
P for every QRS:
P wave:
QRS:




Ventricular Tachycardia
Rate:
Reg?:
P for every QRS:
P wave:
QRS:



Ventricular Fibrillation
Rate:
Reg?:
P for every QRS:
P wave:
QRS:



Supra Ventricular Tachycardia (SVT)
Rate:
Reg?:
P for every QRS:
P wave:
QRS:



Atrial Fibrillation (Afib)
Rate:
Reg?:
P for every QRS:
P wave:
QRS:



Atrial Flutter
Rate:
Reg?:
P for every QRS:
P wave:
QRS:



Agonal
Rate:
Reg?:
P for every QRS:
P wave:
QRS:



Asystole
Rate:
Reg?:
P for every QRS:
P wave:
QRS:


basic structure of the rhythm

Calculating the heart rate The easiest method of calculating the heart rate is to divide 1500 by the number of small boxes between the R waves.

You can also divide 300 by the number of large boxes between the R waves.

Sick Sinus Syndrome
Rate:
Reg?:
P for every QRS:
P wave:
QRS:



Atrial Tachycardia
Rate:
Reg?:
P for every QRS:
P wave:
QRS:



Torsades
Rate:
Reg?:
P for every QRS:
P wave:
QRS:


The electrical conduction of the heart