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: codeine / percocet / percodan / darvocet a500 attending: chief complaint: increased doe major surgical or invasive procedure: avr (21mm tissue valve) history of present illness: 80 yo f with known history of as followed by echo. recent echo showed worsening as which corresponded to increased shortness of breath. referred for surgery. past medical history: chronic af, as/cad, chf, ^lipidemia, pvd, pulmonary hypertension, hypothyroidism, b inguinal hernias, gerd, vertigo, sciatica, b varicosities, osteoporosis, r leg fx social history: part time town worker lives alone quit tobacco 27 years ago 1 drink/day family history: nc physical exam: nad lungs ctab heart rrr 3/6 sem -> carotids abdomen benign extrem war, no edema, ble varicosities neuro grossly intact pertinent results: 05:15am blood wbc-7.4 rbc-3.02* hgb-9.5* hct-26.9* mcv-89 mch-31.4 mchc-35.2* rdw-14.5 plt ct-128* 05:15am blood plt ct-128* 05:15am blood glucose-93 urean-13 creat-0.6 na-141 k-3.8 cl-106 hco3-29 angap-10 brief hospital course: on of ms. an aortic valve replacement with a st. epic tissue valve. this procedure was performed by dr. . she tolerated the procedure well and was transferred in critical but stable condition to the surgical intensive care unit. her pressors were weaned and her chest drains removed. she was transferred to the floor. ms. wires were removed and she was gently diuresed. her coumadin was restarted for her chronic atrial fibrillation. beta blockers were titrated up to control her heart rate and blood pressure. she was seen in consultation by the physical therapy service. by post operative day four she was ready for discharge in stable condition to rehab. medications on admission: unithyroid 112 mcg lasix 20 metoprolol 100 norvasc 5 digoxin 0.25 coumadin 2.5 alternating with 5 simvastatin 80 celebrex 200 ambien 10 hs discharge medications: 1. ranitidine hcl 150 mg tablet sig: one (1) tablet po daily (daily). disp:*30 tablet(s)* refills:*0* 2. simvastatin 40 mg tablet sig: two (2) tablet po daily (daily). disp:*30 tablet(s)* refills:*0* 3. 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:*0* 4. furosemide 20 mg tablet sig: two (2) tablet po once a day: take 2 tablets (40mg) for 7 days, then decrease to 1 tablet (20 mg) ongoing. disp:*120 tablet(s)* refills:*0* 5. potassium chloride 20 meq packet sig: two (2) packet po once a day: take 2 packets for 7 days, then decrease to one packet daily ongoing. disp:*60 packet(s)* refills:*0* 6. levothyroxine 112 mcg tablet sig: one (1) tablet po daily (). 7. ibuprofen 400 mg tablet sig: one (1) tablet po q6h (every 6 hours) as needed. disp:*30 tablet(s)* refills:*0* 8. metoprolol tartrate 25 mg tablet sig: three (3) tablet po tid (3 times a day). disp:*270 tablet(s)* refills:*0* 9. coumadin 2.5 mg tablet sig: one (1) tablet po once a day: take one tablet (2.5mg) every other day alternating with two tablets (5mg) titrated to an inr goal of .5 for atrial fibrillation. disp:*30 tablet(s)* refills:*0* 10. celebrex 200 mg capsule sig: one (1) capsule po once a day. 11. ambien 10 mg tablet sig: one (1) tablet po once a day. discharge disposition: extended care facility: tba discharge diagnosis: as now s/p avr pmh: chronic af, cad, chf, ^lipidemia, pvd, pulmonary hypertension, hypothyroidism, b inguinal hernias, gerd, vertigo, sciatica, b varicosities, osteoporosis, r leg fx discharge condition: good. discharge instructions: call with fever, redness or drainage from incision or weight gain more than 2 pounds in one day or five in one week. shower, no baths, no lotions, creams or powders to incisions. no lifting more than 10 pounds or driving until follow up with surgeon. p instructions: dr. 2 weeks dr. 2 weeks dr. 4 weeks procedure: diagnostic ultrasound of heart open and other replacement of aortic valve with tissue graft diagnoses: coronary atherosclerosis of native coronary artery esophageal reflux unspecified acquired hypothyroidism atrial fibrillation aortic valve disorders other chronic pulmonary heart diseases peripheral vascular disease, unspecified personal history of tobacco use osteoporosis, unspecified 

Answer: The patient is high likely exposed to