- Normal variation
- Inferior wall myocardial infarction (MI)
- Left anterior hemiblock
- Wolff–Parkinson–White syndrome
- Mechanical shifts (ascites, pregnancy, tumors)
- Left bundle-branch block
- Left ventricular hypertrophy
- Aging
| - Normal variation
- Dextrocardia
- Lateral wall MI
- Left posterior hemiblock
- Right bundle-branch block
- Emphysema/COPD
- Acute pulmonary embolism
- Right ventricular hypertrophy
- Hyperkalemia
- Ventricular rhythm disturbances (ventricular tachycardia, accelerated idioventricular)
|