1. EKG Axis

2. -Rate
-Rhythm
-Axis
-Hypertrophy
-Intervals
-Ischemia, Infarct, Injury

3. What is Axis?

5. The quadrant method (AKA thumbs up method)
Left thumb is Lead I
Right thumb Lead aVF

7. Two thumbs up: Normal Axis

9. Right thumb up: Right Axis deviation

10. Right Axis deviation differential diagnosis
Left posterior fascicular block
Lateral MI
RVH PE
COPD
Hyperkalemia
WPW

12. Left thumb up: Left Axis deviation (maybe)

13. Change right thumb from aVF to lead II, if still downgoing then it is true Left Axis

15. Left Axis Deviation differential diagnosis
Left anterior fascicular block
Bifascicular block
Left bundle branch Block
LVH
Inferior MI
Ventricular ectopy
WPW

16. Why is axis important?

17. Why is axis important? It may help you differentiate certain rhythms
It can help support a diagnosis
It is necessary for diagnosis of LAFB, LPFB, bifascicular block and trifascicular block

19. LAFB

20. Left anterior fascicular block
-Left axis
-Small Q wave I and aVL
-Small R waves II, III, aVF
-Normal QRS duration
-Prolonged R wave peak time
In aVL

21. LPFB

22. Bifascicular
Block

23. Bifascicular block