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 a year-old woman with dementia, legal blindness and hypertension who lives in the home who was found this morning with maroon and melanotic stool. she was brought to the emergency room where she had several moderate to large bowel movements with blood and clot in it. she is hemodynamically stable. she had intravenouses in place at the time of interview. her hematocrit dropped from 32.3 to 29 and she received multiple units of blood in the emergency room. she has no fevers or chills. she does acknowledge some abdominal pain. she does report significant weight loss over the past year. past medical history: 1. spinal stenosis. 2. esophagitis. 3. gastroesophageal reflux disease. 4. history of transient ischemic attack. 5. hypertension. 6. iron deficiency anemia. 7. dementia. 8. blindness. 9. colonoscopy in revealed extensive sigmoid diverticulitis. past surgical history: bilateral cataracts. social history: her health care proxy is her daughter. she told the team that she would want interventions to help her mother's life if necessary. family history: noncontributory. allergies: no known drug allergies. medications at homme: 1. aspirin 81 mg once a day. 2. colace 200 mg twice a day. 3. carafate 1 mg twice a day. 4. niferex 150 mg twice a day. 5. effexor xr 75 mg once a day. 6. vicodin one tablet twice a day. 7. risperdal .7 mg once a day. 8. multivitamins once a day. physical examination: she is afebrile 98.1. pulse 92. blood pressure 165/72. respiratory rate 16. 97% on room air. physical examination in general she is a pleasant elderly female in no acute distress. head and neck is within normal limits. heart is regular rate and rhythm. chest is clear to auscultation bilaterally. abdomen she has a soft abdomen with slight suprapubic tenderness. no rebound or guarding. no definitive masses. rectal examination shows bloody stool with no obvious hemorrhoids and no masses. extremities palpable pulses bilaterally. laboratory: hematocrit 32.3, which slowly decreased to 29. ptt 25 and inr 1.0. electrocardiogram showed normal sinus rhythm at 80 and a distant colonoscopy as mentioned before showed significant diverticulosis. hospital course: this is a year-old woman with lower gastrointestinal bleed who was determined to have diverticulosis who had some moderate blood loss per rectum, but was hemodynamically stable. she was admitted to the general surgery service and monitored under the intensive care unit with serial hematocrits. the patient did not continue to bleed per rectum. her serial hematocrits revealed a stable hematocrit and she did not need angiographic location of her bleeding source. on the first day she received 5 units of packed red blood cells and after that she did not require anymore blood to keep her hemodynamically stable. on the third hospital day the patient underwent a colonoscopy by the gastrointestinal team. this colonoscopy revealed significant diverticulosis with no active site of bleeding. it also revealed significant internal hemorrhoids. the patient after being observed for four days is being discharged to home on in good condition. she has not required any blood transfusions in the last four days and has been doing well otherwise. discharge medications: 1. atenolol 25 mg po q.d. 2. risperdal 0.5 mg po q.d. 3. aspirin 81 mg po q.d. 4. colace 200 mg po b.i.d. 5. carafate 1 gram twice a day. 6. niferex 150 mg po q.d. 7. multivitamin po q.d. 8. effexor xr 75 mg po q.d. 9. vicodin one tablet po twice a day as needed for pain. discharge diagnosis: 1. lower gastrointestinal bleeding. 2. blood loss anemia requiring red blood cell transfusion. 3. diverticulosis. 4. internal hemorrhoids. 5. hypertension. 6. gastroesophageal reflux disease. 7. esophagitis. 8. iron deficiency anemia. 9. dementia. 10. bilateral cataract. 11. status post endoscopy. 12. status post colonoscopy. she is recommended to follow up with dr. in two to three weeks and she is being discharged back to her home at facility today on . , m.d. dictated by: medquist36 procedure: arterial catheterization colonoscopy transfusion of packed cells other irrigation of (naso-)gastric tube diagnoses: esophageal reflux unspecified essential hypertension iron deficiency anemia secondary to blood loss (chronic) other persistent mental disorders due to conditions classified elsewhere macular degeneration (senile), unspecified esophagitis, unspecified diverticulosis of colon with hemorrhage internal hemorrhoids without mention of complication 

Answer: The patient is high likely exposed to