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 a 54-year-old gentleman who had a back injury in at which time he went to the emergency room. cat scan done in the emergency room revealed an abdominal aortic aneurysm. he saw our vascular surgeon and was recommended to have a cardiac work-up prior to repair. an stress echocardiogram at that time was positive where he was found to have severe left main and two-vessel disease. he was then referred to for carotid stenting and coronary artery bypass grafting. he underwent carotid stenting on by , m.d., and was discharged to home following stent placement. he returned on for coronary artery bypass grafting as an outpatient admission, postoperative admit. past medical history: severe peripheral vascular disease. bilateral carotid disease. obesity. hypertension. hypercholesterolemia. chronic low back pain. prior intravenous drug use. cardiac catheterization done on , showed left main at 60-70%, left anterior descending 60%, circumflex 100%, right coronary artery 30%, ejection fraction of 70%. echocardiogram on showed an ejection fraction of 50-55%, left atrial enlargement, left ventricular hypertrophy, inferior hypokinesis. medications on admission: lipitor 20 mg q.d., metoprolol 25 mg b.i.d., enteric coated aspirin 81 mg q.d., vitamin b, folate, b6. allergies: no known drug allergies. social history: he is a construction worker. he smokes a half to one pack per day times 40 years. he denied alcohol use. he has been sober times 11 years. no recent intravenous drug use. physical examination: vital signs: on preadmission testing, his heart rate was 56 and regular, blood pressure 148/90, respirations 20, height 5 ft 6 in, weight 212 lbs. general: he was obese but somewhat fit. skin: no obvious lesions. he had multiple park scarring on both arms. heent: pupils equal, round and reactive to light. extraocular movements intact. pupil mucosa was normal. neck: supple. no jugular venous distention. he had bilateral bruits, right greater than left. chest: clear to auscultation bilaterally. heart: irregular. s1 and s2. no murmur appreciated. abdomen: soft, nontender, nondistended. extremities: warm and well perfused with no clubbing, cyanosis, or edema. no varicosities. neurological: cranial nerves ii-xii grossly intact. nonfocal exam. strength equal in all four extremities. pulses: femoral 1+ bilaterally. dorsalis pedis 2+ on the right and left. posterior tibial 1+ bilaterally. radials 1+ bilaterally. laboratory data: none at the time of preadmission testing. chest x-ray pending. electrocardiogram showed sinus at a rate of 55, with occasional premature ventricular contractions, t-wave inversions in lead iii and avf, normal intervals. hospital course: the patient was admitted on for coronary artery bypass grafting directly to the operating room. please see the operative report for full details. in summary, the patient had coronary artery bypass grafting times two with lima to the left anterior descending and saphenous vein graft to the obtuse marginal. his bypass time was 122 min with a cross-clamp time of 100 min. he tolerated the operation well and was transferred from the operating room to the cardiothoracic intensive care unit. at the time of transfer, the patient was in sinus rhythm with a mean arterial pressure of 80, pa of 25/15. he had neo-synephrine at 0.5 mcg/kg/min. he did well in the immediate postoperative period. his anesthesia was reversed, and he was successfully extubated. on postoperative day #1, the patient remained hemodynamically stable, and he was transferred to ................ for continuing postoperative care and cardiac rehabilitation. his chest tubes remained in place on postoperative day #1, as he had a significant amount of drainage. on postoperative day #2, the patient was noted to have rapid atrial fibrillation with a ventricular response of 140-160 and a blood pressure ranging from 90-110, not associated with any dizziness, shortness of breath, or chest pain. at that time, the patient was started on amiodarone, and by on postoperative day #3, the patient had converted to normal sinus rhythm. over the next several days, the patient had an uneventful postoperative course. he did however, have an additional episode of atrial fibrillation on postoperative day #4, and at that time, he was started on heparin infusion, and coumadin was begun. the patient again converted to normal sinus rhythm and has been in normal sinus rhythm since that time. with the assistance of the nursing staff and physical therapy, the patient's activity level was gradually increased, and now on postoperative day #7, the patient is stable and ready to be discharged to home. discharge physical examination: vital signs: temperature 99??????, heart rate 68 in sinus rhythm, blood pressure 116/50, respirations 20, oxygen saturation 96% on room air. weight preoperatively 220 lbs, on discharge 100 kg. neurological: the patient was alert and oriented times three. he moves all extremities. he follows commands. chest: clear to auscultation bilaterally. sternum is stable. incision with steri-strips, open to air, clean and dry. cardiovascular: regular, rate and rhythm. s1 and s2. no murmurs. abdomen: soft, nontender, nondistended. positive bowel sounds. extremities: warm and well perfused. he had 1+ edema bilaterally. right leg saphenous vein graft site with steri-strips, open to air, clean and dry. discharge laboratory data: sodium 140, potassium 4.1, chloride 106, co2 29, bun 12, creatinine 0.9, glucose 102; white count 8.1, hematocrit 23.5, platelet count 197; pt 13.7, ptt 68, on 1400 u heparin, inr 1.3. discharge medications: aspirin 81 mg q.d., atorvastatin 20 mg q.d., plavix 75 mg q.d., metoprolol 50 mg b.i.d., amiodarone 400 mg b.i.d. x 1 week, then 400 mg q.d. x 1 week, then 200 mg q.d., coumadin the patient is to take as directed, he is to receive 5 mg on the day of discharge, 3 mg the day after discharge, and then have his inr checked with dr. on , at which time she will instruct him on how much coumadin to take from that point forward. condition on discharge: stable. discharge diagnosis: 1. bilateral carotid disease status post carotid stenting. 2. coronary artery disease status post coronary artery bypass grafting times two with lima to the left anterior descending and saphenous vein graft to the obtuse marginal. 3. abdominal aortic aneurysm reported as 3.5 cm. 4. hypertension. 5. hypercholesterolemia. 6. prior intravenous drug use. 7. chronic low back pain. discharge status: the patient is to be discharged home. fop: he is to have follow-up in the clinic in two weeks. he is to follow-up with dr. in weeks. follow-up with dr. in four weeks. additionally, the patient is to have his inr checked on in dr. office. he is to call dr. for an appointment prior to wednesday morning to schedule a time for his inr check. , m.d. dictated by: medquist36 procedure: venous catheterization, not elsewhere classified single internal mammary-coronary artery bypass extracorporeal circulation auxiliary to open heart surgery (aorto)coronary bypass of one coronary artery diagnoses: coronary atherosclerosis of native coronary artery pure hypercholesterolemia unspecified essential hypertension cardiac complications, not elsewhere classified atrial fibrillation abdominal aneurysm without mention of rupture lumbago 

Answer: The patient is high likely exposed to