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: penicillins attending: chief complaint: known aortic stenosis with worsening left sided chest pain, fatigue and doe major surgical or invasive procedure: s/p avr(23mm ce pericardial) and mv repair history of present illness: mrs. is an 83 yo with known severe aortic stenosis and a few month h/o worsening doe, fatigue and left sided chest pain. cardiac catheterization showed 0.5cm2, moderate mr and no coronary artery disease. she was refered to dr. for operative management past medical history: pernicious anemia oa gerd hiatal hernia s/p l lobectomy s/p cholecystectomy s/p l leg vein stripping pertinent results: 06:40am blood hct-33.7* 07:10am blood wbc-6.6 rbc-3.51* hgb-11.0* hct-31.9* mcv-91 mch-31.4 mchc-34.5 rdw-13.1 plt ct-169 07:10am blood plt ct-169 06:40am blood glucose-101 urean-24* creat-1.0 na-139 k-4.6 cl-101 hco3-30* angap-13 brief hospital course: mrs was admitted to on and taken to the operating room with dr. for an avr/mv repair. she tolerated the procedure well and was transferred to the icu in stable condition. she was weaned and extubated without difficulty. postoperatively she had a good cardiac output, but had persistent hypotension for which she required neo synephrine. during this time she also had some sinus/junctional bradycardia and required atrial pacing. the neo synephrine was weaned to off by pod#6 and her sinus rhythm had returned. she was transferred from the icu to the floor, was started on lopressor without difficulty, and her epicardial pacing wired were removed without incident. she was started on lasix for diuresis and responded appropriately, although she was very fluid overloaded. it was determined by physical therapy that she would benefit from a stay at short term rehab, and on pod#8 she was cleared for discharge to rehab. medications on admission: atenolol 50mg daily omeprazole 20mg daily hctz 12.5mg daily feso4 325mg daily lipitor 10mg daily b12 injections monthly discharge medications: 1. furosemide 20 mg tablet sig: one (1) tablet po q12h (every 12 hours) for 2 weeks. 2. potassium chloride 10 meq capsule, sustained release sig: two (2) capsule, sustained release po q12h (every 12 hours) for 2 weeks. 3. docusate sodium 100 mg capsule sig: one (1) capsule po bid (2 times a day). 4. oxycodone-acetaminophen 5-325 mg tablet sig: 1-2 tablets po q4h (every 4 hours) as needed for pain. 5. atorvastatin calcium 10 mg tablet sig: one (1) tablet po daily (daily). 6. pantoprazole sodium 40 mg tablet, delayed release (e.c.) sig: one (1) tablet, delayed release (e.c.) po q24h (every 24 hours). 7. metoprolol tartrate 25 mg tablet sig: one (1) tablet po bid (2 times a day). 8. aspirin 81 mg tablet, delayed release (e.c.) sig: one (1) tablet, delayed release (e.c.) po daily (daily). 9. ferrous sulfate 325 (65) mg tablet, delayed release (e.c.) sig: one (1) tablet, delayed release (e.c.) po once a day. discharge disposition: extended care facility: at discharge diagnosis: aortic stenosis s/p avr pernicious anemia osteoarthritis gerd s/p l lobectomy s/p cholecysetectomy s/p l leg vein stripping discharge condition: good discharge instructions: you may take a shower and wash your incision with mild soap and water do not swim or take a bath for 1 month do not apply lotions, creams, ointments or powders to your incisions do not lift anything heavier than 10 pounds for 1 month do not drive for 1 month followup instructions: follow up with dr. in weeks follow up with dr. in weeks follow up with dr. in weeks procedure: extracorporeal circulation auxiliary to open heart surgery open and other replacement of aortic valve with tissue graft annuloplasty diagnoses: other iatrogenic hypotension esophageal reflux unspecified essential hypertension thoracic aneurysm without mention of rupture cardiac complications, not elsewhere classified other specified cardiac dysrhythmias mitral valve insufficiency and aortic valve stenosis pernicious anemia 

Answer: The patient is high likely exposed to