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This is a recording from a man in his seventies with coronary artery disease and recurrent ventricular tachycardia. The patient was taking metoprolol, digoxin, ASA, Coreg, amiodarone, and metformin. Rate (/min) 59 QT (ms) 491
pr (ms) 195 QRS axis (degrees) 60
QRS (ms) 95