Narrow or broad QRS Sinus rhythm Atrial tachycardia Ventricular tachycardia Supraventricular tachycardia
narrow
narrow
broad
narrow
Narrow or broad QRS
Left Bundle Branch Block
Right Bundle Branch Block
Ventricular ectopic
b
b
b
Narrow or broad QRS
Nodal rhythm
Wolff Parkinson White
First degree heart block
n
b
n
Narrow or broad QRS
Second degree heart block (Mobitz 1)
Second degree heart block (Mobitz 2)
Third degree heart block with ventricular escape
n
n
b