Right Axis Deviation=
aVF + III: Positive
I+ aVL: Negative
RAD Causes
Chronic Lung dz Acute PE Lateral MI RV hypertrophy LPFB Na channel blocker Overdose Ventricular ectopy Hyperkalemia WPW Normal in children & Thin people with horizontal heart
Left axis deviation=
I+ aVL= QRS positive
II + aVF= QRS negative
LAD Causes
LAFB LBBB LVH Inferior AMI Ventricular Ectopy Paced Rhythm WPW