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: ativan / morphine / percocet attending: addendum: mr. was evaluated by pt and felt not to be safe to go home due to heavy use of his arms while ambulating with a walker. this was discussed with the patient and his wife. refused rehab stay. wife said she will help him w/ambulation. rehab was advised, but they both refused. discharge disposition: home with service facility: vna md procedure: (aorto)coronary bypass of three coronary arteries single internal mammary-coronary artery bypass extracorporeal circulation auxiliary to open heart surgery diagnostic ultrasound of heart diagnoses: coronary atherosclerosis of native coronary artery unspecified essential hypertension diabetes mellitus without mention of complication, type ii or unspecified type, not stated as uncontrolled chronic airway obstruction, not elsewhere classified cardiac complications, not elsewhere classified atrial fibrillation 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 subendocardial infarction, subsequent episode of care volume depletion, unspecified 

Answer: The patient is high likely exposed to