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: penicillins attending: chief complaint: bright red blood per rectum major surgical or invasive procedure: tagged rbc scan abdominal angiography egd colonoscopy virtual colonoscopy history of present illness: pt is a 85 yom with hx of a fib, chf (ef 35%), gerd, and mechanical mitral valve replacement, chronically anticoagulated on coumadin initially presented with 2-4 episodes of brbpr accompanied by abdominal cramping. he noted large amt of blood in toilet bowl. he had several episodes of bloody bm at home and he presented to ed. deneid any symptoms of fatigue, lightheadedness. . in the ed patient was hemodynamically stable. initial hct was 35.7. gi was consulted in the ed. an ng lavage was performed with 250 cc ns with yellow bilious return. he was treated with 40 mg iv protonix and started on bowel prep with 4 l of go-lytely. he was transferred to micu. in the unit he underwent tagged rbc scan which showed bleeding in llq, however angio was negative. he received 3 units of prbc and hct remained stable thereafter. angio sheaths pulled around 4pm on . . on transfer pt does not have any complaints. denies any chestpain, sob, lightheadedness. he has not had any large bloody bms for >1 day now. per nursing only small (quater sized) amt of blod when he passes gas few times today. past medical history: pmhx: 1. mitral valve disease (bacterial endocarditis) s/p replacement with mechanical valve in ' 2. atrial fibrillation 3. lv dysfunction on echo(): ef 35%, ar 1+, tr 2+\ 4. hiatal hernia s/p repair 5. gerd 6. s/p fatty tumor removal from stomach, s/p tonsilectomy 7. s/p terp social history: worked in the shipyards with lots of asbestos exposure, widowed, lives alone with family in the area, non-smoker, non-drinker family history: nc physical exam: tc 99.2 bp 120/60 hr 80 rr 16 o2sat 95%ra i/o (24 hr) 925/ . gen: elderly male lying in bed in nad. heent: perrl, eomi, op clear, mmm chest: faint bibasilar crackles otherwise ctab cvr: irreg, irreg, +mitral click (mechanical valve) abd: soft, nt, nd ext: trace edema bilaterally to ankles. 1+ r dp, trace pt, l 1+ dp/pt pulses. right groin with a small (lipoma vs hematoma) like mass near the angio catheter insertion site. no bruit. neuro: a & o x3. pertinent results: 11:20pm hct-32.1* 07:00pm glucose-99 urea n-24* creat-1.2 sodium-139 potassium-4.6 chloride-99 total co2-32 anion gap-13 07:00pm wbc-7.8 rbc-4.28* hgb-11.9* hct-35.7* mcv-83 mch-27.8 mchc-33.3 rdw-15.5 07:00pm pt-33.6* ptt-37.8* inr(pt)-3.6* . hct 26 -> 28 ->30.6 ( 7pm) inr 1.9 tagged rbc scan - gastrointestinal bleeding in left lower quadrant . angio - impression: 1. no evidence of gi bleeding in the sma or territory. 2. spasm versus occluded branch of the left colic artery. 3. no signs of angiodysplasia or neovascularity. 4. right transfemoral approach 5-french vascular sheath left in place due to patient's anticoagulated status . this is left to continuous flush. . tagged rbc scan - interpretation: following intravenous injection of autologous red blood cells labeled with tc-m, blood flow and delayed images of the abdomen for 90 minutes were obtained. a left lateral view of the pelvis was also obtained. blood flow images show prompt flow of tracer through the aorta and iliac arteries. delayed blood pool images show no evidence of bleeding within the gi tract. impression: no visible source of gi bleed. . colonoscopy: severe diverticulosis. no active bleeding. egd: normal mucosa, no active bleeding. virtual colonoscopy: no active bleeding. brief hospital course: 85 yom with a. fib, chf (ef 35%), mvr, gerd and on anticoagulation with coumadin at home admitted with brbpr, thought to be bleeding diverticuli in the setting of anticoagulation. . #gi bleed: the patient had several episodes of bright red blood per rectum during his admission, and although his hct did drop slightly, it remained stable at 28 and the patient was asymptomatic. initial tagged rbc scan with llq bleeding, however angio was negative. he had more episodes of brbpr after having a negative angio, so he had a repeat tagged rbc scan that was negative . ir did not feel repeat angio was indicated given the negative tagged red cell scan. patient had no further epsiodes of brbpr after . therefore, gi did colonoscopy and egd and patient had subsequent virtual secondary to poor prep (unable to visualize the cecum) which were negative for active bleeding but demonstrated severe diverticulosis. we restarted heparin gtt secondary to mvr and afib, under very tight control with goal ptt between 40-80 and began to re-bridge to coumadin on . after the colonoscopy, the patient tolerated advancement of his diet well and will be discharged on protonix. he was advised to follow a low-residue diet. he received 1unit of prbc's and his hct bumped appropriately over 30, where it remained stable until discharge. . # nsvt - on , the patient experienced a 15 run of vt. his electrolytes were normal, last echo with ef 40%. the patient was stable and entirely asymptomatic during this episode. we continued to follow him on telemetry with no further events. it is possible that the patient was dehydrated, and we hung maintenance fluids of ns at 100cc/hr. . #mvr/ a. fib: given mechanical valve and a.fib, pt at very high risk for thromboemblism if remains off anticoagulation. given his stable hct we restarted low dose heparin (goal ptt 60-80) without bolus. we restarted coumadin on and he was sent home with inr of 3.5 (goal 2.5-3.5). . #chf: stable, restarted lasix at 20 mg po qday to be changed per pcp as an outpatient. . #htn: stable and well controlled on metoprolol. medications on admission: metoprolol 25 mg po tid atorvastatin 10 mg po hs folic acid 1 mg po daily coumadin 3mg twthss coumadin 4.5mg mf discharge medications: 1. folic acid 1 mg tablet sig: one (1) tablet po daily (daily). 2. atorvastatin 10 mg tablet sig: one (1) tablet po hs (at bedtime). 3. metoprolol tartrate 25 mg tablet sig: one (1) tablet po tid (3 times a day). 4. pantoprazole 40 mg tablet, delayed release (e.c.) sig: one (1) tablet, delayed release (e.c.) po q24h (every 24 hours). 5. warfarin 3 mg tablet sig: one (1) tablet po daily (daily): take 4.5 mg po on monday, . then resume taking 3 mg po daily. please have your inr checked on . 6. furosemide 20 mg tablet sig: one (1) tablet po daily (daily). 7. multivitamin capsule sig: one (1) cap po daily (daily). discharge disposition: home discharge diagnosis: bleeding diverticulosis atrial fibrillation mitral valve replacement chf htn discharge condition: good, ambulating, stable discharge instructions: please return to the hospital if you notice bright red blood in your stool, or if you experience fainting, dizziness, chest pain or palpitations. . you will need to return to your primary care physician for follow up on your inr levels on tuesday. followup instructions: please follow up with you primary care physician, . , within one week of discharge. . . please follow up with the clinic with dr. within 2 weeks of discharge. (. provider: phone: date/time: 9:30 provider: , md phone: date/time: 2:30 provider: , /oncology-cc9 date/time: 2:30 procedure: other endoscopy of small intestine colonoscopy arteriography of other intra-abdominal arteries transfusion of packed cells computerized axial tomography of abdomen diagnoses: esophageal reflux congestive heart failure, unspecified unspecified essential hypertension atrial fibrillation aortic valve disorders paroxysmal ventricular tachycardia heart valve replaced by other means other malignant lymphomas, unspecified site, extranodal and solid organ sites long-term (current) use of anticoagulants dehydration diverticulosis of colon with hemorrhage diseases of tricuspid valve 

Answer: The patient is high likely exposed to