Consider the following medical report that includes the patient's historical health records. Use it to predict the disease that the patient is high likely exposed to. 

 Medical Report: allergies: no known allergies / adverse drug reactions attending: addendum: patient remained as inpatient because of several episodes of post operative atrial fibrillation for which he was started on amiodarone, his bblocker dose was increaseda and he was begun on coumadin. after his rate was rate controlled he was discharged to rehabilitation on pod9 discharge disposition: extended care facility: hospital - md procedure: (aorto)coronary bypass of three coronary arteries single internal mammary-coronary artery bypass extracorporeal circulation auxiliary to open heart surgery coronary arteriography using two catheters hemodialysis other electric countershock of heart implant of pulsation balloon diagnoses: hyperpotassemia end stage renal disease renal dialysis status coronary atherosclerosis of native coronary artery mitral valve disorders cardiac complications, not elsewhere classified gout, unspecified atrial fibrillation true posterior wall infarction, initial episode of care hypertensive chronic kidney disease, unspecified, with chronic kidney disease stage v or end stage renal disease other and unspecified hyperlipidemia surgical operation with anastomosis, bypass, or graft, with natural or artificial tissues used as implant causing abnormal patient reaction, or later complication, without mention of misadventure at time of operation spinal stenosis, unspecified region other fluid overload elevated prostate specific antigen [psa] hyperplasia of prostate, unspecified, without urinary obstruction and other lower urinary symptoms (luts) 

Answer: The patient is high likely exposed to