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: past medical history: this is a 70-year-old man with a past medical history of hypertension, atrial fibrillation, an ejection fraction of 35%, no known coronary artery disease, who presents for evaluation of ventricular fibrillation arrest. he was in his usual state of health until the day on admission when he was eating dinner with his wife at home. he had a sudden collapse. his wife is a registered nurse. she felt no pulse and no breathing. she called 911 and began cardiopulmonary resuscitation. emergency medical technicians arrived and noted ventricular fibrillation. he was shocked once at 200 joules with return of blood pressure and pulse. the patient was intubated and taken to where he was found to be slow ventricular tachycardia. he was given lidocaine. on arrival to the emergency department electrocardiogram showed atrial fibrillation with q-t noted to be 0.56 seconds, a qtc of 0.52 seconds. in the emergency room, potassium was noted to be 3. the patient was transferred to the coronary care unit for further management. past medical history: (notable for) 1. atrial fibrillation. 2. hypertension. 3. prostate cancer. 4. status post laminectomy of his neck in the with residual altered sensation and strength in the bilaterally upper and lower extremities secondary to a car crash. 5. right eye cataract. 6. ejection fraction of 35%. no previous catheterizations. normal stress test approximately two years ago. medications on admission: coumadin 2 mg p.o. q.d., allopurinol 200 mg p.o. q.d., verapamil-sr 240 mg p.o. q.d., zestril 40 mg p.o. q.d., digoxin 0.125 mg p.o. q.d., spironolactone 25 mg p.o. p.r.n., lasix 80 mg p.o. q.d., iron replacement, potassium replacement 25 meq p.o. q.d.. allergies: aspirin which causes nausea. physical examination: on physical examination blood pressure was 125/62, heart rate was 86 in atrial fibrillation. on physical examination, an elderly male who was intubated and sedated, and unresponsive. pupils were 2 mm and minimally reactive. there was a left temporal hematoma. neck was supple. no lymphadenopathy. heart was in a regular rhythm. normal s1 and s2. a 2/6 systolic murmur radiating to the axilla. chest was clear to auscultation to anterior examination. abdomen was soft and nontender, normal active bowel sounds. there was 1+ extremity edema. neurologically, the patient was intubated and unresponsive. moved all extremities. withdrew to pain. laboratory: laboratory analysis showed a white blood cell count of 6.8, hematocrit was 41.6, platelets were 279. sodium was 143, potassium 3, chloride was 101, bicarbonate was 21, bun was 16, creatinine was 1, glucose was 148. calcium was 8.8, phosphorous was 3.9, magnesium was 1.4. ptt was 35.7, inr was 3.3. alt of 16, ast 31, alkaline phosphatase 78, amylase 56, total bilirubin 1.2. digoxin level was 0.8. radiology/imaging: electrocardiogram #1 from the field showed accelerated idioventricular rhythm versus ventricular tachycardia versus an supraventricular tachycardia with aberrancy at about 150, with a q-t of 0.6. no st-t wave abnormalities. electrocardiogram #2 showed narrow complex at 75, normal axis, t wave sloping down in i, avl, v3 to v6. electrocardiogram in the emergency department on arrival showed a regular narrow complex at 75, normal axis, some t wave sloping in v2 to v6, q-t of 0.56, qtc of 0.52. chest x-ray showed cardiomegaly. head ct showed no evidence of hemorrhage. hospital course: the patient was admitted to the coronary care unit for further management. 1. cardiovascular: the patient was monitored very carefully on telemetry following ventricular fibrillation arrest. the etiology was unclear for the arrest. the possibilities included an ischemic event versus electrolyte abnormalities in the setting of a structural heart disease. the patient had a known ejection fraction of 35%; although he has never had a catheterization to work this up further. he has had previous stress tests which have been negative. it was felt it was possible in the settings of the electrolyte abnormalities extended q-t perhaps secondary to verapamil and the structural heart disease that the patient had arrhythmia based on these; although ischemia could not be excluded. the patient was kept on lidocaine overnight which was then tapered off. he was maintained on beta blocker, ace inhibitor, and aspirin. he had no subsequent ventricular tachycardia or ventricular fibrillation during his hospital stay. initial cardiac workup was deferred for several days while his neurologic status was being evaluated. eventually, electrophysiology was consulted. they recommended pursuing an initially conservative course, treating the patient with amiodarone, and recommended re-evaluating in two to four weeks for possible catheterization as well as electrophysiology study with possible implantable cardioverter-defibrillator placement. the patient's family agreed with this plan, and the patient was stated on amiodarone. 2. neurology: on arrival to the coronary care unit the patient was intubated and unresponsive. he began to wake up over the course of the first night, and the next day the patient was weaned from the ventilator and extubated. he was responsive, however, he exhibited some short-term memory loss and some disorientation. this was felt to be secondary to anoxic brain injury; although, initially, there was a question of whether the patient was withdrawing from alcohol as he has a history of heavy drinking prior to this. for that reason, he was kept on ativan for several days which was eventually tapered off without incident. following that, the neurology and rehabilitation services were consulted and they felt that his presentation was consistent with anoxic brain injury. it was anticipated that mr. would have a slow recovery but could eventually see considerable improvement. 3. trauma: the patient initially had a large left occipital hematoma. a ct scan, however, showed no acute fracture and no evidence of intracranial hemorrhage. 4. hematology: the patient had a slowly trending down hematocrit during his stay while on heparin. the patient had episodic rectal bleeding which was a chronic problem for him from radiation-induced changes following therapy for prostate cancer. his hematocrit, however, stabilized in the low 30s. he never required a blood transfusion during this admission and tolerated anticoagulation with coumadin. 5. rhythm: the patient's rhythm remained atrial fibrillation/flutter throughout his stay rate controlled at all times. 6. physical therapy: it was felt that the patient would benefit from a rehabilitation stay at discharge. discharge status: he was sent to rehabilitation for a short cardiac in general rehabilitation stay. condition at discharge: stable. discharge diagnoses: 1. status post cardiac arrest. 2. hypoxic brain injury. 3. hypertension. 4. decreased ejection fraction. 5. atrial fibrillation. medications on discharge: 1. colace 100 mg p.o. b.i.d. 2. aspirin 325 mg p.o. q.d. 3. zantac 150 mg p.o. b.i.d. 4. thiamine 100 mg p.o. q.d. 5. folate 1 mg p.o. q.d. 6. multivitamin 1 tablet p.o. q.d. 7. captopril 75 mg p.o. t.i.d. 8. lopressor 25 mg p.o. b.i.d. 9. lasix 80 mg p.o. q.d. 10. coumadin 2.5 mg p.o. q.d. (goal inr of 2 to 3). 11. amiodarone 400 mg p.o. t.i.d. until ; then 400 mg p.o. b.i.d. for two weeks; followed by 400 mg p.o. q.d. discharge followup: the patient was to follow up with dr. , of the electrophysiology staff, in two to three weeks for follow-up electrophysiology evaluation. , m.d. dictated by: medquist36 procedure: continuous invasive mechanical ventilation for less than 96 consecutive hours venous catheterization, not elsewhere classified diagnoses: unspecified essential hypertension atrial fibrillation personal history of malignant neoplasm of prostate mitral valve insufficiency and aortic valve insufficiency atrial flutter hypopotassemia anoxic brain damage primary pulmonary hypertension ventricular fibrillation 

Answer: The patient is high likely exposed to