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: patient recorded as having no known allergies to drugs attending: chief complaint: gi bleed major surgical or invasive procedure: therapeutic endoscopy with epinephrine and bicap cautery. history of present illness: 82yo m with h/o pud and htn presented to 4d history of weakness, fatigue, and chocolate-colored stool. patient was in usoh until week prior to admission on when pt had black, dark chocolate stool which pt felt was related to food. sx continued and on the day of admission, patient felt weak, fatigued, lightheaded, and dizzy on standing, and went to . noted hct of 24 and sent pt to ed. pt denies fevers, chills, abdominal pain, cp, sob, palpitations. complains of slight nausea, no hematemesis. no loss of appetite, no weight loss, no nsaid use, no etoh. in ed, patient had hct of 19.4. ng lavage in ed showed coffee grounds and pt was given 2u prbc. past medical history: 1. pud - 30-40 yrs ago. no transfusions, no hospitalizations. colonoscopy in showed polyps. 2. htn social history: lives in , ma. retired civil engineer. 1ppd x 20 yrs, quit 60 yrs ago. no etoh. physical exam: 98.8 142/56 87 19 99%2l fatigued-appearing male, nad perrl, eomi, mmm, op clear neck supple, no jvd, no lad lungs ctab cv rrr, nl s1s2, no m/g/r abd: nabs, soft, nt, nd, no hsm guiac positive, melena extr warm, no c/c/e pertinent results: initial hct: 19.4 bun/cr: 39/1.5 brief hospital course: 82yo m with h/o pud 30yrs ago and htn p/w 4-day h/o weakness, fatigue, dark stool, coffee grounds on lavage, hct 19, with ng lavage positive for coffee grounds. 1. ugi bleed. hct rose from 19.4 to 25.1 after 2u prbc. 2 peripheral iv's and a femoral line were placed. the pt was admitted to micu for rapid egd. egd done in micu showed bleeding duodenal ulcer, which was cauterized and treated with epinephrine, with good effect. the patient was treated with ppi and carafate. hct remained stable with no further requirement for blood products. h. pylori testing was negative. on , the patient was discharged to home from the micu with a hct of 33. symptoms of weakness, fatigue, and dizziness on standing had resolved. 2. arf. cr on admission was 1.5; unclear baseline. thought to be likely prerenal given gib, and pt was given blood and ivf. cr was 1.0 by the time of discharge. 3. htn. antihypertensive medications were held in the setting of gib. 4. prophylaxis. the patient was kept on a ppi. the patient used pneumoboots until he felt well enough to ambulate. 5. communication: (wife) 6. fc medications on admission: calcium supplement lasix, dose unknown norvasc 10mg qd discharge medications: 1. protonix 40 mg tablet, delayed release (e.c.) sig: one (1) tablet, delayed release (e.c.) po once a day. disp:*30 tablet, delayed release (e.c.)(s)* refills:*2* discharge disposition: home discharge diagnosis: upper gi bleed discharge condition: stable discharge instructions: please return to the er or contact your primary care doctor immediately if you notice blood in your stool or black stool, bloody vomit or dark vomit, or if you become lightheaded, dizzy, feel weak, or have fevers and chills, or nausea and vomiting. please take your medications as directed. followup instructions: you have a follow-up appointment with dr. on friday, at 2:20pm. please go to dr. office on the early at 1:30, and pick up a lab slip for a blood draw before your appointment. your appointment with dr. at 2:20pm. procedure: insertion of other (naso-)gastric tube endoscopic control of gastric or duodenal bleeding transfusion of packed cells gastric gavage diagnoses: unspecified essential hypertension acute kidney failure, unspecified iron deficiency anemia secondary to blood loss (chronic) hypopotassemia chronic or unspecified duodenal ulcer with hemorrhage, without mention of obstruction personal history of colonic polyps 

Answer: The patient is high likely exposed to