HTML/PDA translation by Sanjiv Shah, M.D. and Ryan Berg, M.D.

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• How to approach a 12-lead ECG
• Axis - Overview
• Left axis deviation
• Right axis deviation
• Right superior axis deviation
• Atrial abnormalities
• Bundle branch blocks
• ST elevation
• ST depression and T wave inversion
• QT interval
• U wave
• Left ventricular hypertrophy
• Right ventricular hypertrophy
• Myocardial ischemia, injury, and infarction
• MI in LBBB
• MI in LVH
• Mimics of myocardial infarction
• R waves
• ST-T abnormalities
• ST-T-U abnormalities
• Nonspecific ST-T changes
• Low volts
• COPD
• WPW
• Pericarditis
• Lead misplacement
• Hypothermia
• Early repolarization
• Hyperkalemia
• Pulmonary embolism