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: discharge status: to home. discharge diagnoses: status post coronary artery bypass grafting x 4, left internal mammary artery to left anterior descending coronary artery, saphenous vein graft to obtuse marginal, saphenous vein graft to diagonal right coronary artery, saphenous vein graft to d1. discharge medications: 1. metoprolol 50 mg p.o. b.i.d. 2. colace 100 mg p.o. b.i.d. 3. aspirin 325 mg p.o. q.d. 4. percocet 5/325 one to two tablets p.o. q. 4-6 hours p.r.n. pain. 5. amiodarone 200 mg two tablets p.o. b.i.d. 6. protonix 40 mg p.o. q.d. 7. glucophage 1 gram p.o. b.i.d. 8. gemfibrozil 600 mg p.o. b.i.d. 9. azulfidine 1 gram q.i.d. 10. levofloxacin 500 mg p.o. q.d. x 5 days for urinary tract infection. follow-up plans: the patient was instructed to follow up with dr. in one to two weeks and dr. in five to six weeks. , m.d. dictated by: medquist36 d: 10:45 t: 11:49 job#: 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 diagnoses: coronary atherosclerosis of native coronary artery intermediate coronary syndrome pure hypercholesterolemia urinary tract infection, site not specified unspecified essential hypertension diabetes mellitus without mention of complication, type ii or unspecified type, not stated as uncontrolled cardiac complications, not elsewhere classified atrial fibrillation other nonspecific abnormal serum enzyme levels 

Answer: The patient is high likely exposed to