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: past medical history: 1. hyperlipidemia. 2. lower back pain. 3. varicose veins. 4. obesity. past surgical history: 1. varicose vein ligation approximately 20 years ago. 2. cardiac catheterization on . home medications: 1. lipitor. 2. percocet. 3. celebrex. hospital course: the patient was admitted to the medical center on and taken to surgery where he had a two vessel cabg performed. his internal mammary was grafted to his lad and a left radial artery graft was targeted to the pda. the patient had an uneventful recovery. the patient was transferred to the cardiothoracic surgery floor on postoperative day number one. his stay on the floor was uneventful. the patient's pain was well controlled. he met level v goals with physical therapy on postoperative day number three. by the day of discharge, postoperative day number four, the patient was ambulating well. his pain remained well controlled. he had been in normal sinus rhythm throughout, although with frequent pvcs. the patient's oxygen saturations remained in the low 90s. this was not entirely surprising given the patient's heavy smoking history. the patient was noted to have one isolated episode of a desaturation to the low 80s during one session with physical therapy. his subsequent sessions were uneventful. discharge condition: stable. discharge medications: 1. metoprolol 50 mg p.o. b.i.d. 2. lasix 20 mg p.o. b.i.d. 3. potassium chloride 20 meq b.i.d. 4. colace 100 mg p.o. b.i.d. 5. aspirin 325 mg p.o. q.d. 6. percocet. 7. imdur 60 mg p.o. q.d. 8. plavix 75 mg p.o. q.d. 9. motrin 400 mg p.o. t.i.d. p.r.n. follow-up: the patient is to follow-up with dr. four weeks following discharge. the patient is also to follow-up with his primary care physician in two to four weeks following discharge. discharge diagnosis: coronary artery disease requiring 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 one coronary artery monitoring of cardiac output by other technique diagnoses: coronary atherosclerosis of native coronary artery intermediate coronary syndrome other and unspecified hyperlipidemia 

Answer: The patient is high likely exposed to