Technical issues -- The normal ECG -- ECG interpretation basics -- Abnormal repolarization : ST segment elevation -- Abnormal repolarization: ST segment depression -- Abnormal repolarization : T wave changes and the QT interval -- Abnormal depolarization : prominent R wave in V1 -- Abnormal depolarization : wide QRS complexes and Q waves -- Arrhythmias : normal rates and skips -- Arrhythmias : bradycardia -- Arrhythmias : tachycardia -- Arrhythmias : pacing -- Clinical use of the ECG : stress testing -- Clinical use of the ECG : clinical problems