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 78-year-old male with aortic stenosis referred for further evaluation and possible surgery. he was noted to have had dyspnea on exertion for several months now with a positive stress test that showed dyspnea and 2-mm st segment depressions in leads v4 through v6. negative for chest pain, however. his ejection fraction was noted to be was noted to be 63% at this time. he did have a catheterization due to exertional symptoms and an abnormal stress test in . it revealed a 40% mild lad lesion prior to the first diagonal and a 40% ostial d1 of 20%, d2 of 40%, rca distally. the patient reports that he has been having progressive dyspnea with exertion now for 2 years and shortness of breath when shoveling snow or pushing a lawnmower. it also occurs when he walks about 1 block. he has not had any chest pain. he also has not had any claudication, orthopnea, edema, pnd or lightheadedness. no fevers, chills, nausea or vomiting. past medical history: significant for hypertension, hypercholesterolemia, and diabetes mellitus in addition to benign prostatic hyperplasia, right dvt, hip arthritis, hard of hearing. he has had an appendectomy in the past and a circumcision as an adult and esophageal narrowing for which he undergoes dilations every 6 months. no history of tias or cvas. allergies: no known allergies. physical examination on admission: the patient was afebrile with all vital signs stable. he was in no apparent distress and comfortable in bed. neuro revealed was alert and oriented x 3 and following all commands. pupils were equally round and reactive to light, and he was anicteric. the neck was supple with no lymphadenopathy or thyromegaly. carotids were noted to have a radiating murmur typical of aortic stenosis. the lungs were clear to auscultation bilaterally. heart was in a regular rate and rhythm with a 4/6 systolic ejection murmur. the abdomen was soft, nontender and nondistended with normal active bowel sounds. the extremities were warm and well perfused throughout. there was no clubbing, cyanosis or edema. the pulses were 2+ throughout. hospital course: thus, at this time the patient was admitted for aortic valve replacement with dr. to take place on the morning of . this proceeded without any issues, and the patient was brought to the csru afterwards. he was noted to have some atrial fibrillation at this time. he was on beta blockade again, lopressor 12.5 b.i.d., and the rest of his home medications were started. he was noted to not require anticoagulation at this time as his rhythm quickly returned to sinus. the patient was followed by physical therapy as well who evaluated the patient and found him to be fit for discharge to home when he was medically cleared, and on postoperative day 3 the patient continued to progress well with his pacer wires discontinued at this time. his lopressor was increased to 50 p.o. b.i.d. to control rate, and he was noted to be increasing his activity with physical therapy. his creatinine was 1.7 at this time, so his lasix was held. by the time of discharge it returned to baseline at 1.3, and lasix was restarted. on postoperative day #5, the patient was deemed fit for discharge to home without services, and there was noted some ankle swelling, and so his lasix dose was increased to 40 p.o. b.i.d. with his creatinine now normalized. discharge instructions: the patient to keep wounds clean and dry. the patient is allowed to shower but no bathing or swimming until at least followup or until further notice. the patient to take all medications as prescribed. the patient to call for any fever, redness or drainage from the wound, chest pain, shortness of breath or if there are any other questions or concerns. discharge followup: the patient to follow up with dr. in 4 weeks and to call ( to schedule an appointment. the patient to follow up with primary care doctor in 1 week to have laboratories drawn to check electrolytes; specifically his potassium with his lasix restarted. medications on discharge: colace 100 mg p.o. b.i.d., protonix 20 mg p.o. daily, aspirin 81 mg p.o. daily, percocet 5/325 1 to 2 tablets p.o. q.4-6h. as needed for pain, atorvastatin 10 mg p.o. daily, terazosin 2 mg p.o. at bedtime, amiodarone 400 mg p.o. b.i.d. x 7 days then 400 mg daily x 7 days then 200 mg daily after that point, metoprolol 50 mg p.o. b.i.d., lisinopril 10 mg p.o. daily, furosemide 40 mg p.o. b.i.d. for 7 days, potassium chloride 20 meq p.o. daily for 7 days. discharge disposition: the patient will be discharged to home with visiting nurse assistance. , m.d. procedure: extracorporeal circulation auxiliary to open heart surgery diagnostic ultrasound of heart open and other replacement of aortic valve with tissue graft transfusion of packed cells transfusion of other serum transfusion of platelets diagnoses: coronary atherosclerosis of native coronary artery unspecified essential hypertension diabetes mellitus without mention of complication, type ii or unspecified type, not stated as uncontrolled cardiac complications, not elsewhere classified atrial fibrillation aortic valve disorders hypertrophy (benign) of prostate without urinary obstruction and other lower urinary tract symptom (luts) other and unspecified hyperlipidemia personal history of venous thrombosis and embolism other abnormal blood chemistry osteoarthrosis, unspecified whether generalized or localized, pelvic region and thigh 

Answer: The patient is high likely exposed to