1. No category

AV Block Flowchart
#P’s > #QRS
complexes??
Yes
Is PRI fixed??
Yes
No
Is PRI> 0.2 sec.??
(5 small boxes)
Yes
1° AVB
2° Type II AVB
Is R-R interval fixed??
No
No heart block
No
Yes
3° AVB
No
2° Type 1 AVB