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: patient recorded as having no known allergies to drugs attending: chief complaint: abnormal stress test major surgical or invasive procedure: - cabgx4 (lima->lad, vein->obtuse marginal, vein->diag, vein->posterior descending artery) history of present illness: the patient is 58-year-old man who presents with angina and severe 3-vessel disease. he has an ejection fraction of 30-35% but no mitral regurgitation. it was elected to proceed with bypass surgery. past medical history: hypercholesterolemia htn cvd s/p carotid stenting imi social history: unmarried, lives alone. works as a custodian at and recently started working nights. does not drink alcohol. coming to the hospital by bus. does not have anyone to take him home and stay with him following the procedure and plans to take the chair car home. hospital policy explained to patient regarding having someone with him at home post procedure. will try to make arrangements for someone to stay with him overnight after the procedure. emergency contact is patient's aunt : family history: mother had rheumatic heart disease. brother had cabg at around age 60. physical exam: blood pressure in the right upper extremity is 168/84. heart rate is 60, respiratory rate is 14. lungs are bilaterally clear to auscultation without rales or wheezes. cardiovascular exam is regular rate, normal s1 and s2. no s3, s4 or murmur are audible. pulses in the carotids are bilaterally symmetric and full. there is a soft left carotid bruit compared with the right. lower extremities reveal bilaterally symmetric and full common femoral pulses, popliteal, dp and pt pulses bilaterally. pertinent results: echo pre-bypass: overall left ventricular systolic function is mildly depressed with an estimated ef of 40-45 %. resting regional wall motion abnormalities include inferior and infero-septal walls basal akinesis with an inferobasal left ventricular aneurysm, and apical anterior wall hypokinesis. mild left ventricular cavity dilation, mild lvh. the left atrium is moderately dilated. no atrial septal defect is seen by 2d or color doppler. right venricular function is normal. the aortic valve leaflets (3) appear structurally normal with good leaflet excursion. trace aortic regurgitation is seen. the mitral valve appears structurally normal with trivial mitral regurgitation. there are simple atheroma in the descending thoracic aorta. post-bypass: preserved right ventricular systolic function. lvef 45%. trivial mr. signs of aortic dissection post decannulation. rest of study is unchanged from pre-bypass. 12:07pm blood pt-14.0* ptt-26.7 inr(pt)-1.2* 06:50am blood pt-12.5 ptt-24.5 inr(pt)-1.1 12:07pm blood wbc-9.6 rbc-3.18*# hgb-9.8*# hct-27.7*# mcv-87 mch-30.8 mchc-35.2* rdw-14.3 plt ct-207 06:10am blood wbc-8.7 rbc-3.41* hgb-10.1* hct-29.2* mcv-86 mch-29.6 mchc-34.6 rdw-15.3 plt ct-221 01:16pm blood urean-17 creat-0.7 cl-112* hco3-27 06:50am blood glucose-114* urean-13 creat-0.9 na-139 k-3.4 cl-101 hco3-28 angap-13 09:30pm blood glucose-93 urean-5* creat-0.7 na-136 k-3.7 cl-102 hco3-25 angap-13 brief hospital course: mr. was admitted to the on for surgical management of his coronary artery disease. he was taken directly to the operating room where he underwent coronary artery bypass grafting to four vessels. postoperatively he was taken to the cardiac surgical intensive care unit for monitoring. on postoperative day one, mr. neurologically intact and was extubated. beta blockade, aspirin and a statin were resumed. his chest tubes and drains were removed per protocol without complication. on postoperative day three, he was transferred to the step down unit for further recovery. he was gently diuresed towards his preoperative weight. the physical therapy service was consulted for assistance with his postoperative strength and mobility. he developed diarrhea and a culture revealed c. difficile. flagyl was started for treatment. mr. had a foley catheter reinserted for urinary retention. flomax was started and his foley was removed 24 hours later with successful voiding. as mr. continued to have diarrhea on flagyl, oral vancomycin was also started. his electrolytes were repleted daily. a gastrointestinal consult was obtained who recommended to continue oral vancomycin for two weeks. as his follow-up stool culture was negative for c. difficile, lomotil was used to help slow his diarrhea. mr. continued to make steady progress and was discharged home with vna services on postoperative day eighteen. he will follow-up with dr. , his cardiologist and his primary care physician as an outpatient. medications on admission: aspirin 325 mg--1 tablet(s) by mouth once a day atenolol 25 mg-- tablet(s) by mouth once per day split tablet in half hydrochlorothiazide 25 mg--1 tablet(s) by mouth qam lipitor 40 mg--one half tablet(s) by mouth once a day lisinopril 20 mg--1 tablet(s) by mouth once a day plavix --one by mouth every day discharge medications: 1. aspirin 81 mg tablet, delayed release (e.c.) sig: one (1) tablet, delayed release (e.c.) po daily (daily). disp:*30 tablet, delayed release (e.c.)(s)* refills:*2* 2. oxycodone-acetaminophen 5-325 mg tablet sig: one (1) tablet po q4h (every 4 hours) as needed for pain. disp:*40 tablet(s)* refills:*0* 3. atorvastatin 20 mg tablet sig: one (1) tablet po daily (daily). disp:*30 tablet(s)* refills:*2* 4. lisinopril 20 mg tablet sig: one (1) tablet po daily (daily). disp:*30 tablet(s)* refills:*2* 5. hexavitamin tablet sig: one (1) cap po daily (daily). disp:*30 cap(s)* refills:*2* 6. tamsulosin 0.4 mg capsule, sust. release 24hr sig: one (1) capsule, sust. release 24hr po hs (at bedtime). disp:*30 capsule, sust. release 24hr(s)* refills:*2* 7. pantoprazole 40 mg tablet, delayed release (e.c.) sig: one (1) tablet, delayed release (e.c.) po q24h (every 24 hours). disp:*30 tablet, delayed release (e.c.)(s)* refills:*2* 8. cholestyramine-sucrose 4 g packet sig: one (1) packet po qid (4 times a day). disp:*120 packet(s)* refills:*2* 9. diphenoxylate-atropine 2.5-0.025 mg tablet sig: one (1) tablet po q8h (every 8 hours) as needed for diarrhea. disp:*30 tablet(s)* refills:*0* 10. vancomycin 250 mg capsule sig: two (2) capsule po q6h (every 6 hours) for 1 weeks. disp:*56 capsule(s)* refills:*0* 11. metoprolol tartrate 25 mg tablet sig: 0.5 tablet po bid (2 times a day). disp:*30 tablet(s)* refills:*1* 12. imodium a-d 2 mg tablet sig: one (1) tablet po four times a day as needed for diarrhea: 1 caplet after each loose stool, but no more than 4 caplets in 24 hours. disp:*30 tablet(s)* refills:*0* discharge disposition: home with service facility: care group discharge diagnosis: coronary artery disease s/p coronary artery bypass graft x 4 hypercholesterolemia hypertension carotid stenting inferior myocardial infarction discharge condition: good discharge instructions: 1) monitor wounds for signs of infection. these include redness, drainage or increased pain. 2) report any fever greater then 100.5. 3) report any weight gain of 2 pounds in 24 hours or 5 pounds in 1 week. 4) no lotions, creams or powders to incision until it has healed. you may shower and wash incision. no bathing or swimming for 1 month. use sunscreen on incision if exposed to sun. 5)no lifting greater then 10 pounds for 10 weeks. 6)no driving for 1 month. followup instructions: please follow-up with dr. in 1 month ( please follow-up with provider: , m.d. date/time: 8:40 ( follow-up with , m.d. phone: initial visit should be 2 weeks aafter discharge and also. date/time: 3:40 clinic dr. or dr. first available appointment. 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 transfusion of packed cells diagnoses: coronary atherosclerosis of native coronary artery pure hypercholesterolemia unspecified essential hypertension other and unspecified angina pectoris intestinal infection due to clostridium difficile old myocardial infarction retention of urine, unspecified family history of ischemic heart disease dehydration 

Answer: The patient is high likely exposed to