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 an 83-year-old male with history of coronary artery disease, atrial fibrillation, hypertension, diabetes mellitus, dementia, depression, nursing home resident who was found to have a sudden onset of bright red blood per rectum on the evening of admission, was sent to where there is noted to be significant bleeding from the rectum. three peripheral ivs were placed, 2 liters of normal saline were given at 500 cc an hour, nasogastric lavage was negative. there was no evidence of rectal masses. the patient was transferred to for further management. four units of packed red blood cells were given and 2 units of fresh-frozen plasma were given in the emergency department. patient was unable to recall events from earlier in the day except that he was bleeding. at the time of admission, did not have any complaints of any lightheadedness, shortness of breath, chest pain. had some mild diffuse abdominal pain, but no chest pain. past medical history: 1. dementia, normally oriented x1 at baseline. 2. depression. 3. atrial fibrillation not on coumadin secondary to fall risk. 4. hypertension. 5. non-insulin dependent-diabetes mellitus. 6. coronary artery disease status post remote myocardial infarction. 7. femoral neck fracture. 8. no history of gastrointestinal bleeds in the past. allergies: haldol unspecified. medications on admission: 1. nifedipine. 2. prozac. 3. lisinopril. 4. aspirin. 5. neurontin. 6. zyprexa. 7. lasix. 8. digoxin. 9. celebrex. 10. zantac. 11. isosorbide. 12. trazodone. 13. dulcolax. 14. milk of magnesia. 15. calcitriol. 16. tylenol. 17. mvi. physical examination on admission: temperature: afebrile, blood pressure 145/65, pulse 103, respiratory rate 18, and o2 saturation is 100% on room air. in general, alert and oriented times one, talking comfortably, and lying in bed with bright red blood per rectum on his sheets. heent: pupils are equal, round, and reactive to light. mucous membranes moist. oropharynx is clear. no lymphadenopathy. cardiovascular examination: irregularly, irregular, 2/6 systolic murmur at precordium. no jugular venous distention. lungs: anteriorly clear to auscultation. abdomen: diffuse tenderness in the lower abdomen, positive bowel sounds, no rebound or guarding. no hepatic tenderness, no hepatomegaly. extremities: no cyanosis, clubbing, or edema, no calf tenderness or swelling. laboratories on admission: white blood cell count 5.0, hematocrit 42.5, platelets of 121, inr 1.3, ptt 31.0. ck #1 was 98. electrocardiogram: showed atrial fibrillation with a rate of 120, right axis deviation, and right bundle branch block, q waves, early r-wave progression, rvh, t-wave inversions in ii, iii, and avf, v4 through v6. impression: the patient is an 83-year-old male with history of atrial fibrillation on aspirin, hypertension, dementia, and depression who presents with brisk gastrointestinal bleed with no history or evidence of upper gastrointestinal bleeding. hospital course: 1. gastrointestinal: the patient was admitted with a hematocrit of nearly 40. was brought down to 23.3 by hospital day two. received a total of 10 units of packed red blood cells over the course of the next two days as well as vitamin k, 4 units of fresh-frozen plasma. the aspirin was held, and the patient was prepped for a colonoscopy. on , the patient underwent a tag red blood cell scan to observe for sources of bleeding. no evidence of acute extravasation and underwent an angiogram from the mesenteric arteries which also did not show any evidence of active bleeding. the patient continued to have bright red blood per rectum and underwent a repeat tag red blood cell scan about 12 hours after the first one which showed some increased uptake in the region of the mid transverse colon suggesting that this might have been the source of bleeding, however, repeat angiogram failed to demonstrate an angiographically evident bleed and was not amenable to embolization. general surgery service recommended a colonoscopy to define the source of bleeding, and possible endoscopic intervention that could potentially stop the source of bleeding. however, the patient continued to put out significant amounts of blood and quality of prep was poor to undergo a colonoscopy. intercurrent with the gastrointestinal bleeding, the patient was noted to have significant secretions that he was unable to clear on his own and became progressively more short of breath. he also required sedation as he was disoriented on admission, which likely further exacerbated his ability to clear his secretions. after discussion with the family, they were very clear that patient was not to be intubated or to have aggressive resuscitation performed in the event of cardiac or respiratory failure. it was explained to them that likely his pulmonary status would continue to worsen as he was unable to clear secretions and was requiring significantly increased amounts of oxygen. as a result, the family decided that he would not want to pursue aggressive intervention including no surgery or aggressive care to be given in order to improve the patient's respiratory status or retransfuse in light of the event of further gastrointestinal bleeding. as a result, the patient's code status was changed from dnr/dni to comfort measures only, and on was started on some morphine for comfort care, and on passed away due to respiratory failure. family declined a postmortem examination. date of expiration: . , m.d. dictated by: medquist36 procedure: arteriography of other intra-abdominal arteries diagnoses: unspecified essential hypertension diabetes mellitus without mention of complication, type ii or unspecified type, not stated as uncontrolled atrial fibrillation pneumonitis due to inhalation of food or vomitus encounter for palliative care hemorrhage of gastrointestinal tract, unspecified 

Answer: The patient is high likely exposed to