Heart Blocks ECG Quiz 1 Answer

1. Normal sinus rhythm
2. 3rd degree AV block
3. Right bundle branch block
4. Right axis deviation

This ECG is classic for 3rd degree heart block (a.k.a. complete heart block). For a complete review of 3rd degree AV block, click the "3rd Degree AV Block Review" button below.

Related Topic Reviews: 3rd Degree AV Block Review, Right Bundle Branch Block, Determining Axis