Sixty-two year old gentleman who is undergoing preoperative anesthesia clearance priorto planned rotator cuff repair

Clinical History 09

Sixty-two year old gentleman who is undergoing preoperative anesthesia clearance priorto planned rotator cuff repair. His past medical history is notable for hypertension but no known cardiac disease. His medications included verapamil.
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Thirty-nine year old woman, unrestrained passenger who suffered an aortic transection

Clinical History 08

Thirty-nine year old woman, unrestrained passenger who suffered an aortic transection distal to the left subclavian artery from a motor vehicle accident. This electrocardiogram was taken postoperatively shortly after thoracic aorta repair.
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Forty-one year old gentleman with myelodysplasia syndrome

Clinical History 06

Forty-one year old gentleman with myelodysplasia syndrome and insulin requiring diabetes mellitus admitted for a bone marrow transplantation. His serum potassium at the time of this electrocardiogram was 3.4 meq/L
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Seventy year old woman who presents for a general physical examination.

Clinical History 05

Seventy year old woman who presents for a general physical examination. She has a history of coronary artery obstructive disease and is status post a myocardial infarction of unknown location four years prior to this electrocardiogram. Other co-morbid conditions include extensive past tobacco use, hypertension and gastro esophageal reflux disease. Her medications at the time of this electrocardiogram included potassium, thyroxin, triamterene/hydrochlorothiazide and Naprosyn.
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