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: crestor attending: addendum: mr. was given ultram prior to discharge, yesterday, and subsequently became confused. it was decided to monitor for one more day. confusion resolved and the patient was stable for discharge to rehab on , pod 6. discharge disposition: extended care facility: & rehab center - 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 angiocardiography of left heart structures left heart cardiac catheterization transfusion of packed cells transfusion of other serum transfusion of platelets diagnoses: subendocardial infarction, initial episode of care coronary atherosclerosis of native coronary artery esophageal reflux urinary tract infection, site not specified unspecified essential hypertension unspecified transient mental disorder in conditions classified elsewhere other and unspecified hyperlipidemia chronic total occlusion of coronary artery 

Answer: The patient is high likely exposed to