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: history of present illness: the patient is an 81 year old man with angina and three vessel coronary artery disease, and preserved left ventricular function. past medical history: 1. varicose veins. 2. chronic atrial fibrillation. 3. deep vein thrombosis. 4. prostate carcinoma. 5. hypertension. 6. status post abdominal aortic aneurysm repair. allergies: no known drug allergies. physical examination: head, eyes, ears, nose and throat is normocephalic and atraumatic. the pupils are equal, round, and reactive to light and accommodation. the oropharynx is clear. neck reveals no jugular venous distention and no thyromegaly. the heart is regular rate and rhythm, no murmurs, rubs or gallops. the lungs are clear to auscultation bilaterally. the abdomen is soft, nontender, nondistended. lower extremities - small varicose veins seen on bilateral lower extremities, no cyanosis, clubbing or edema. cardiac catheterization showed om a 70% stenosis, mrca 70% stenosis, distal right coronary artery 80% stenosis, proximal left anterior descending 50% stenosis, mid left anterior descending 70% stenosis, and ejection fraction of 50%. hospital course: the patient was admitted on , and underwent a three vessel coronary artery bypass graft with left internal mammary artery to the left anterior descending, saphenous vein graft to om1 and saphenous vein graft to pl. the patient was transferred to the csru postoperatively and did well. on postoperative day number one, the patient's mediastinal tubes were removed. immediately prior to transfer to the floor, the patient went into rapid atrial fibrillation. the patient was given amiodarone bolus and was started on amiodarone t.i.d. the morning of postoperative day number two the patient converted to sinus rhythm at a rate of 60 beats per minute. the patient's foley and - drain were removed on postoperative day number two. the patient's right ij was also removed on postoperative day number two. on postoperative day number three, the patient was started back on his coumadin 5 mg that evening. the patient's lopressor was increased to 25 mg p.o. b.i.d. as he went back into atrial fibrillation at a rate of approximately 100. on postoperative day number four, the patient was started on a heparin drip because he had continued in atrial fibrillation with a rate of approximately 110. the patient was given another dose of 5 mg coumadin that evening. the patient's lopressor dose was increased to 75 mg p.o. b.i.d. on postoperative day number five, the patient continued to do well and had converted into sinus rhythm overnight. the patient was continued on his heparin drip as he still was not therapeutic on his coumadin. the patient was given a dose of 5 mg again on postoperative day number five. on postoperative day number five, the patient was seen by physical therapy who felt that he was at level four. the patient was to be followed up on postoperative day number six for level five evaluation. the patient's inr was to be checked on postoperative day number six and if getting close to therapeutic, he would be discharged to home off the heparin drip. so the plan was for discharge on postoperative day number six to home in good condition on the following medications. medications on discharge: 1. coumadin 5 mg alternating with 2.5 mg p.o. q.h.s. 2. amiodarone 400 mg p.o. t.i.d. times four days, amiodarone 400 mg p.o. b.i.d. times seven days, amiodarone 400 mg p.o. q.d. times seven days. 3. lopressor 75 mg p.o. b.i.d. 4. lasix 20 mg p.o. b.i.d. times seven days. 5. potassium chloride 20 meq p.o. b.i.d. times seven days. 6. colace 100 mg p.o. b.i.d. 7. aspirin 81 mg p.o. q.d. 8. zocor 10 mg p.o. q.h.s. 9. percocet 5/325 one to two tablets p.o. q4-6hours p.r.n. condition on discharge: good. follow-up: he is to follow-up with dr. in four weeks. discharge diagnosis: status post three vessel coronary artery bypass graft. , m.d. dictated by: medquist36 procedure: single internal mammary-coronary artery bypass extracorporeal circulation auxiliary to open heart surgery (aorto)coronary bypass of two coronary arteries monitoring of cardiac output by other technique diagnoses: coronary atherosclerosis of native coronary artery intermediate coronary syndrome pure hypercholesterolemia unspecified essential hypertension atrial fibrillation personal history of malignant neoplasm of prostate 

Answer: The patient is high likely exposed to