Page 409 - ECG dr shamol_Slide

2 nd degree hear block •Mobitz type II
Mobiz type II 4 :1

Mobiz type II 4 :1

To remember
PR = is fixed (it is differentiate point from type I)

st
R—R = is irregular (it is differentiate point from 1 & 3 rd degree )
(P≠QRS) Some p is not followed by QRS complex,
It may follow 2: 1, 3:1 or haphazard (in 2: 1 every alternate P wave is conducted )

Site : HIS purking system