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: mr. is an 86-year-old gentleman who presented to the emergency department with complaints of nausea, vomiting, and right upper quadrant pain for two days. this history was obtained per his granddaughter and wife due to the patient's dementia and alzheimer's disease. he apparently had been complaining of constant pain and denied having any previous episodes. there was no postprandial pain. no fevers. no chills. no changes in bowel habits. he had been slightly constipated recently but denied any diarrhea. he denied any history of ulcerative disease. he was noted at this time to be slightly jaundiced. there had been on recent weight loss. past medical history: 1. alzheimer's disease. 2. question or a prior arrhythmia. 3. previous eye surgery. 4. hypertension. medications on admission: verapamil, aricept, digoxin, nitroglycerin patch, prozac, and aspirin. allergies: no known drug allergies. physical examination on presentation: physical examination on admission revealed the patient was afebrile with a temperature of 98.3 degrees fahrenheit, heart rate was 74, blood pressure was 168/58, and oxygen saturation was 98% on room air. in general, he was nonverbal but was alert and in no apparent distress. he was noted to be jaundiced with scleral icterus. his neck was supple with no lymphadenopathy, and no jugular venous distention. his lungs were clear to auscultation bilaterally. his heart examination revealed an irregularly irregular rhythm with normal first heart sounds and second heart sounds. the abdomen was soft with right upper quadrant tenderness to both palpation and percussion. there were no masses palpated. his extremities were warm and well perfused with no peripheral edema. pertinent laboratory values on presentation: pertinent laboratory studies on admission revealed his white blood cell count was found to 11.6 and hematocrit was 42.3. his electrolytes revealed sodium was 142, potassium was 3.9, chloride was 101, bicarbonate was 26, blood urea nitrogen was 26, and his creatinine was 1. his liver function tests revealed abnormalities with his alt being elevated at 417, and his ast being evaluated at 284. his alkaline phosphatase was 326 with a total bilirubin of 6.3. amylase and lipase were within normal limits. pertinent radiology/imaging: a right upper quadrant ultrasound was performed which showed a distended gallbladder containing small stones and sludge. there was no evidence of common bile ductal dilatation, or gallbladder wall edema, or pericholecystic fluid. the patient did not have a son sign. hospital course by issue/system: mr. was started on antibiotics (cefoxitin and flagyl) in the emergency department, and an ercp consultation was obtained. he was taken to the endoscopic retrograde cholangiopancreatography suite on the following morning and found to have an impacted stone seen at the major ampulla as well as a large periampullary diverticulum. a large filling defect in the distal common bile duct was also noted as well as evidence of acute cholangitis. a distal common bile duct stone extraction as well as biliary sphincterotomy were performed. please refer to the dictated gastroenterology note for further details of the procedure. the patient tolerated the procedure well and was admitted to the surgical intensive care unit following his procedure. at this time, he was stated on ampicillin, gentamicin, and flagyl and immediately began to improve his clinical picture. his abdominal pain began to resolve, and he became afebrile and more alert. his liver function tests began to normalize with a drop in his total bilirubin to 3.2 by post procedure day two as well as drops in his transaminases and alkaline phosphatase. the patient was kept on his intravenous antibiotics with a change to unasyn, and his home medications were slowly added back to his regimen. on post procedure day three, he was stable and ready for discharge to the regular floor. he continued to improve and was transferred to the regular patient floor as soon as a bed became available. on post procedure day four, his total bilirubin had further decreased to 1.5, and his transaminases were 107 and 43 (respectively), with an alkaline phosphatase of 147. he continued to remain afebrile with no further abdominal tenderness. at this time, he was restarted on a diet and his medications. he continued to improve. on hospital day six, post procedure day five, it was felt that the patient was stable and ready for discharge. due to his advanced age, the severity of his infection at the time of admission, and his alzheimer's disease it was felt that he would benefit for a short stay in a rehabilitation facility. condition at discharge: condition on discharge was stable. discharge status: discharge status was to a rehabilitation facility. discharge diagnoses: 1. ascending cholangitis. 2. cholelithiasis. 3. status post endoscopic retrograde cholangiopancreatography with extraction of common bile duct stone and biliary sphincterotomy. 4. atrial fibrillation. 5. alzheimer's disease. 6. inguinal hernia. 7. status post eye surgery. medications on discharge: 1. aricept 10 mg p.o. once per day. 2. verapamil 40 mg p.o. twice per day. 3. protonix 40 mg p.o. once per day. 4. nystatin swish-and-swallow. 5. prozac. 6. digoxin 0.125 mg p.o. once per day. 7. ativan 0.5 mg p.o. q.6h. as needed. 8. lopressor. 9. subcutaneous heparin. discharge instructions/followup: 1. mr. was to follow up with dr. in approximately 10 to 14 days. 2. mr. was also to follow up with his primary care physician. , m.d. dictated by: medquist36 procedure: endoscopic removal of stone(s) from biliary tract endoscopic sphincterotomy and papillotomy diagnoses: unspecified essential hypertension atrial fibrillation alzheimer's disease dementia in conditions classified elsewhere without behavioral disturbance calculus of gallbladder and bile duct with acute cholecystitis, with obstruction diverticulosis of small intestine (without mention of hemorrhage) 

Answer: The patient is high likely exposed to