This document discusses various cardiac rhythms categorized by heart rate and QRS complex characteristics. It distinguishes between tachycardia and bradycardia, and then provides further classifications for each based on factors like QRS width, regularity, presence of P waves, and underlying rhythm. Common rhythms mentioned include sinus tachycardia, atrial flutter, junctional tachycardia, atrial fibrillation, sinus bradycardia, heart block, and slow atrial fibrillation.

1. Tachycardia
HR > 100
Broad QRS
Narrow QRS
Regular
Irregular
VT
VF
Monomorphic
Polymorphic
Regular
P Present
Irregular
P Absent
P Present
P Absent
Sinus Tachy
Atrial Flutter
PSVT
Junctional
Multifocal Atrial
Atrial Fibrillation

2. Bradycardia
Broad QRS
Narrow QRS
Regular
Irregular
Idioventricular
CHB- 3 degree
2nd Degree HB
Regular
Irregular Slow AF
PR normal
PR Prolonged 1st degree HB
Sinus Brady