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: discharge medications: 1. aspirin 325 mg tablet one p.o. q.d. 2. zantac 150 mg tablet one p.o. b.i.d. 3. colace 100 mg p.o. b.i.d. 4. lopressor 12.5 mg p.o. b.i.d. 5. paxil 40 mg p.o. q.d. 6. nefazodone 150 mg three tablets p.o. q.d. 7. percocet 1-2 tablets p.o. q.4h. as needed for pain. 8. milk of magnesia. 9. ibuprofen 400 mg one p.o. q.6h. prn for pain. 10. iron 325 mg tablet one p.o. q.d. 11. vitamin c one tablet p.o. b.i.d. discharge diagnoses: 1. juvenile rheumatoid arthritis. 2. helicobacter pylori. 3. depression. 4. remote drug abuse. 5. congenital bicuspid aortic valve with asai. 6. status post limited access aortic valve replacement with 27 mm - bovine prosthesis utilizing cardiopulmonary bypass. discharge status: home. discharge condition: good. discharge instructions: the patient was instructed to call doctor with temperature greater than 101.4 or if patient experienced any nausea, vomiting, or dizziness. patient is also instructed to call if he experienced any redness, swelling, drainage around the incision site, and to followup with dr. , who is his primary care physician weeks, cardiologist in weeks, who is and dr. cardiothoracic surgeon on one month at the number . , m.d. dictated by: medquist36 procedure: extracorporeal circulation auxiliary to open heart surgery diagnostic ultrasound of heart other intubation of respiratory tract open and other replacement of aortic valve with tissue graft diagnoses: anemia, unspecified aortic valve disorders iatrogenic pneumothorax congenital insufficiency of aortic valve other malaise and fatigue precipitous drop in hematocrit helicobacter pylori [h. pylori] cardiomegaly foreign body in main bronchus 

Answer: The patient is high likely exposed to