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: this is an 87-year-old male with an extensive medical history presented to the emergency department on complaining of right lower quadrant abdominal pain since 2 a.m. patient states that the pain was nonradiating. he also complained of dry heaves without any emesis or diarrhea. he did not report any fevers or chills. he states that his fingersticks are within normal limits in the 150s. he does not report any weight gain or loss. he states that he has had similar episodes of right lower quadrant pain which had been due to elevated lactate levels and acidosis, and he had been treated conservatively in the past. ct scan of the abdomen which was done in the emergency room on the date of admission showed dilated appendix concerning for acute appendicitis. given the patient's extensive medical history, specifically his cardiac risk factors, the decision was made to conservatively treat the patient with intravenous antibiotics. past medical history: 1. atrial fibrillation with ddi pacer. 2. noninsulin-dependent diabetes mellitus. 3. status post coronary artery bypass graft times three in . 4. nephrolithiasis. 5. history of colon cancer. 6. status post episode of bowel ischemia. 7. end-stage cardiomyopathy with ejection fraction 20 to 30% with mitral regurgitation and tricuspid regurgitation. 8. chronic renal insufficiency with a baseline creatinine of 1.6. past surgical history: 1. status post coronary artery bypass graft times three in . 2. sigmoid colectomy in . allergies: penicillin. medications: 1. glyburide. 2. coumadin. 3. neurontin 100 mg p.o. t.i.d. 4. aspirin 81 mg p.o. q. day. 5. lisinopril 5 mg p.o. q.d. 6. digoxin 0.125 mg p.o. q.d. 7. allopurinol 200 mg p.o. q.d. 8. bumex. 9. carvedilol 12.5 mg p.o. b.i.d. 10. zantac 150 mg p.o. b.i.d. physical examination upon evaluation: temperature of 99.2, heart rate 72, respiratory rate 24, blood pressure 133/55, oxygen saturation 95% on room air. he is ill appearing but in no acute distress. he is alert and oriented times three. his sclerae are anicteric, and his neck is supple without any masses. his lungs have bibasilar crackles. his heart is a regular rate and rhythm with a ii/vi holosystolic murmur. his abdomen is nondistended and has normoactive bowel sounds. the abdomen is soft and tender in the right lower quadrant with guarding and rebound. his extremities are arm and have 1+ edema bilaterally to the ankles. laboratory data: his cbc on evaluation was as follows: white blood cell count 8.4, hematocrit 31.3 with 85 neutrophils and 7% lymphocytes. his electrolytes were as follows: sodium 134, potassium 5.4, chloride 101, bicarbonate 26, bun 58, creatinine 1.6, glucose 170. his urinalysis had greater than 50 white blood cells with moderate bacteria, moderate leukocyte esterases, and no nitrites. cardiac enzymes were drawn upon initial evaluation. the first set showed a ck of 82 with a negative mb and troponin of 0.05. studies: kub done in emergency room showed nonspecific bowel gas pattern. ct of the abdomen revealed a questionably dilated appendix and free fluid in the pelvis. hospital course: given the patient's extensive medical history, specifically the patient's cardiac risk factors, the patient was not taken to the operating room. it was decided to treat the patient conservatively with medical management. he was placed on antibiotics which included levofloxacin and flagyl. he was made npo. intravenous fluids were started. a foley was placed to strictly measure his i's and o's. he was admitted to the intensive care unit for the first several days of his hospital course. the patient was continued on all of his cardiac medications. his coumadin was held. his cbc and electrolytes were closely followed during the course of his hospital stay. the patient's symptoms significantly improved during the early part of his hospital course. his abdominal pain significantly subsided with the antibiotics and bowel rest. he remained afebrile, and his vital signs were stable. the ct scan was reviewed with several members of the radiology department. a closer look at the ct scan revealed patient had a fluid collection that had been loculated and was not the appendix, as had been earlier thought. the patient's white count remained within normal limits during the course of his hospital stay. given that the patient's pain had significantly improved, his diet was slowly advanced. he was able to tolerate clear liquids at the point of his transfer to the cardiology service. the patient was having bowel movements, but he described them as loose. clostridium difficile toxin studies were ordered and were pending at the time this transfer. given that his urinalysis upon initial admission had been positive for urinary tract infection, sensitivities were drawn and the organism was found to be sensitive to macrodantin. the patient was placed on macrodantin on hospital day four. the cardiology service followed the patient during the initial part of his hospital course. given that they had recommended that the patient's pacer be upgrade, it was decided that, since he had been stable from a surgical standpoint, he would be transferred to the electrophysiology service for management of his pacer. per the cardiology service's recommendations, the patient was given a dose of vitamin k to reverse his inr in preparation for his pacer procedure. his inr responded to the vitamin k and was 1.9 on the day of his transfer to the cardiology service. he was transferred to their service on hospital day 5. remainder portion of this hospital stay will be dictated at a later date by the cardiology team. , m.d. dictated by: medquist36 procedure: division of sympathetic nerve or ganglion implantation of cardiac resynchronization pacemaker without mention of defibrillation, total system [crt-p] diagnoses: abdominal pain, unspecified site anemia, unspecified mitral valve disorders urinary tract infection, site not specified congestive heart failure, unspecified unspecified essential hypertension diabetes mellitus without mention of complication, type ii or unspecified type, not stated as uncontrolled other specified forms of chronic ischemic heart disease diseases of tricuspid valve 

Answer: The patient is high likely exposed to