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 an 84 year old male with a history of bladder carcinoma who had presented with findings of left distal ureteral tumor. at this point, he is scheduled to undergo a left distal ureterectomy which he received on . past medical history: coronary artery disease. congestive heart failure with ejection fraction of 40 percent. moderate mitral regurgitation. . chronic renal insufficiency. allergies: no known drug allergies. medications: 1. senna for constipation. 2. furosemide 40 mg p.o. twice a day. 3. hydralazine 25 mg p.o. three times a day. 4. metoprolol 25 mg p.o. three times a day. 5. finasteride 5 mg p.o. once daily. 6. terazosin 1 mg p.o. q.h.s. 7. alendronate 5 mg p.o. once daily. 8. isosorbide dinitrate 10 mg p.o. three times a day. 9. promethazine 25 mg p.o. q6hours for nausea. 10. percocet. 11. colace. hospital course: postoperatively, the patient did well but was monitored in the intensive care unit overnight. postoperative hematocrit was 30.0 and creatinine was 1.3. the patient did well postoperatively and received a nephrostogram on . antegrade nephrostogram was performed via the left percutaneous nephrostomy tube. the end of the nephrostomy tube is present in the renal pelvis. the surgically placed double j stent is in place. there is no evidence of hydronephrosis. there is a small contained leak at the uretero-ureteroanastomosis. contrast does pass into the bladder via the double j stent. these findings were discussed with dr. at the time of the procedure. a percutaneous nephrostomy tube was left to external gravity drains. a repeat antegrade nephrostogram will be performed in approximately one week to evaluate for a leak at that time. postoperatively, the patient progressed, did well and is being discharged to an extended care facility. discharge instructions: monitor for fever, chills, nausea, vomiting, inability to tolerate food or drink or to urinate. if any of these occur, is to contact physician . the patient should have a repeat nephrostogram on approximately , or , and he should follow-up with dr. office in seven to ten days. condition on discharge: good. he is afebrile, tolerating a regular diet, ambulating with difficulty and requiring assistance, pain well controlled on oral medications. , procedure: venous catheterization, not elsewhere classified closed [endoscopic] biopsy of bronchus ureteral catheterization transfusion of packed cells percutaneous pyelogram ureteroneocystostomy partial ureterectomy diagnoses: coronary atherosclerosis of native coronary artery mitral valve disorders congestive heart failure, unspecified unspecified essential hypertension pulmonary collapse old myocardial infarction unspecified disorder of kidney and ureter malignant neoplasm of ureter 

Answer: The patient is high likely exposed to