The rhythm is atrial fibrillation, and there are marked increases in the QRS deflections with an R in V6 greater than that in V5 and also greater than 35mm. There aer marked ST changes in the absence of digitalis. The EKG is diagnositic of left ventricular hypertrophy. This patient has IHSS. Rate (/min) 66 QT (ms) 363
pr (ms) QRS axis (degrees) 40
QRS (ms) 90