Post-MI
Infiltrative cardiomyopathy
Myocarditis
Hypothyroidism
Effusion
Constrictive pericarditis
Pneumopericardium
COPD (limb leads)
Pneumomediastinum
Pneumothorax
Pleural effusion
Pulmonary edema
Peripheral edema
Obesity
Low ECG voltage
Post-MI
T wave changes
Infiltrative cardiomyopathy
ST segment depression
Myocarditis
ST segment elevation
Hypothyroidism