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: briefly, this is a -year-old male who lives in a nursing home who came to the er after being noted to have a black toe at his nursing home. he was unsure as to how long, but it was mentioned that it might have been a few days. he did not complain of any pain and was noted to feel cold on inspection at the nursing home. he denied any history of trauma. he was nonambulatory, but denied any resting pain. no fevers, chills, nausea or vomiting, and no prior vascular surgery. past medical history: atrial fibrillation. prostate cancer. chronic renal insufficiency secondary to hypertension. renal failure. dementia. past surgical history: status post pacemaker. status post turp. status post aortic repair. allergies: no known drug allergies. medications: 1. lasix 40 mg po once daily. 2. procrit 0.4 ml q monday. 3. atenolol 25 mg po once daily. 4. isosorbide dinitrate 10 mg tid. 5. coumadin 4 mg po once daily. 6. nephrocaps 4 mg tid. 7. kcl 40 meq po once daily. 8. multivitamin once daily. 9. methylphenidate 10 mg po bid. physical exam: he was afebrile with stable vitals. he was a poor historian, but age-appropriate. his heart was irregular. his lungs were clear. his abdomen was soft, nontender, nondistended. his extremities were cool. he had a biphasic dp. femorals and popliteals were palpable. on the left, he had a monophasic dopplerable dp and a monophasic pt. his femoral and popliteals were palpable. his first and second toes were black and necrotic with dry gangrene. labs: remarkable for a bun and creatinine of 114 and 6.8, and his white count was 10.8 with a normal diff. his urine was normal. hospital course: the patient was admitted to the medical service for management of his elevated creatinine. he was started on antibiotics, and he ultimately grew out mssa and was continued on oxacillin. after maximization of fluids and renal consult, it was decided that the patient would ultimately likely need dialysis down the road, and the plan was to proceed with an angiogram to evaluate his left lower extremity. angiogram was done which showed significant disease of his popliteal and tibioperoneal trunk with reconstitution distally. vein mapping was done, and it was found that the patient had adequate left greater saphenous vein. it was decided that the patient would undergo bypass graft after complete optimization. the family was aware of all of these plans and decided to proceed with his surgery. the patient was taken to the operating room on for a left popliteal-pt bypass graft with reversed saphenous vein. please see the operative report for further details. the patient was transferred to the vascular intensive care unit, and postoperatively he did well. he was extubated. a swan was placed intraoperatively and was kept in place. he continued to do well and was began on diuresis shortly after his operation. he swan was kept in through his hospital stay, and his pa pressures were elevated. however, he had no symptomatology of increased pulmonary hypertension. he was started on heparin for his graft, as well as for his coumadinization, and he was restarted on his coumadin. on postoperative day 4, he was doing well. his swan was removed. he was therapeutic on his coumadin, and it was planned that the patient would return to his nursing home. it was decided that the toes which were necrotic and black would be allowed to demarcate, and time would be given for the bypass graft to enhance vascular flow to the region, and ultimately a decision would be made whether to do toe amputations versus a tma. currently, it is planned that the patient will return in two weeks time for a planned tma. the patient is going to continue on his oxacillin for coverage of his coag-positive staph aureus which is sensitive, and the patient was discharged. he was followed throughout his hospital stay by the renal service, as well as the cardiology service, which followed in consultation. it was decided that the patient would return to all of his home medications, and he would be followed very closely by his nephrologist. the patient was instructed to follow-up with dr. in weeks for planned tma, as well as follow-up with his nephrologist and his primary care physician for frequent lab checks. the patient will need his labs checked in approximately 3-4 days to evaluate his creatinine. the patient is discharged in stable condition. discharge diagnoses: peripheral vascular disease, status post bypass graft. dry gangrene of his first and second toe, status post bypass graft. secondary diagnoses: renal failure. atrial fibrillation. chronic renal insufficiency. hypertension. status post pacemaker. status post transurethral resection of prostate. status post aortic repair. discharge medications: 1. lasix 40 mg po once daily. 2. atenolol 25 mg po once daily. 3. aspirin 325 po once daily. 4. coumadin dosed intermittently to keep his inr at 2.5. 5. percocet 1-2 tabs po q 4 h prn. 6. oxacillin 2 gm po q 6. 7. colace 100 mg po bid. he was instructed to continue on all of his home medications, and instructed to follow-up with dr. , as well as his nephrologist, as well as his pcp. patient was discharged in stable condition. , procedure: arteriography of femoral and other lower extremity arteries other (peripheral) vascular shunt or bypass transfusion of other serum diagnoses: acidosis congestive heart failure, unspecified acute kidney failure, unspecified atrial fibrillation personal history of malignant neoplasm of prostate hypertensive chronic kidney disease, unspecified, with chronic kidney disease stage v or end stage renal disease heart valve replaced by transplant atherosclerosis of native arteries of the extremities with gangrene 

Answer: The patient is high likely exposed to