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 a 57-year-old male with a past medical history of type 2 diabetes mellitus, sarcoidosis, and a left bundle-branch block who was brought to the emergency department after being found down at the gymnasium where he had been exercising on a treadmill. the patient states that he had been feeling tired earlier in the day but went to the gymnasium to do his usual 15-minute walk on the treadmill. he usually does this three times per week. following his exercise session, he passed out. emergency medical service found him and documented a heart rate of 20 beats per minute with a blood pressure of 90/palpable. the patient was given 2 mg of atropine without a response. transcutaneous pacing was attempted as well, unsuccessfully. the patient was started on a dopamine drip and was taken to the emergency department. in the emergency department, the patient's vital signs revealed a heart rate of 36 with a blood pressure of 66/40. he was continued on the dopamine drip with an improvement in his heart rate to the 40s to 50s. stat laboratories disclosed a potassium elevated at 6.6, and the patient was given calcium gluconate, bicarbonate, and insulin. shortly thereafter, the patient's heart rate began to decrease to the 20s. dopamine was administered "wide open," and the patient was given normal saline fluid boluses. the patient was intubated for airway protection. he was brought to the coronary care unit for further management. review of systems: before intubation, the patient denied chest pain, cough, fevers, chills, abdominal pain, nausea, and vomiting. he also denied orthopnea, paroxysmal nocturnal dyspnea, and palpitations. he did report occasional shortness of breath with exertion. he reported that he exercises approximately 15 minutes on a treadmill two to three times per week. past medical history: 1. status post cervical spine surgery in ; complicated by a lacerated esophagus. 2. chronic stable angina. 3. a left bundle-branch block. 4. onychodystrophy. 5. an echocardiogram in disclosed an ejection fraction of 40% with no wall motion abnormalities. 6. a stress test in disclosed regional left ventricular systolic dysfunction, but no reversible defects. 7. paroxysmal atrial fibrillation. 8. sarcoidosis diagnosed in ; the patient took steroids for four years. 9. hypothyroidism. 10. type 2 diabetes mellitus times 10 years. 11. hypercholesterolemia. 12. cardiac catheterization revealed there was moderate left and mild right ventricular diastolic function, there was mild focal left ventricular systolic dysfunction, there was mild pulmonary arterial hypertension, there was a left-sided superior vena cava. allergies: no known drug allergies. medications on admission: 1. aspirin 325 mg p.o. once per day. 2. glucophage 1 g p.o. twice per day. 3. lipitor 20 mg p.o. once per day. 4. atenolol 100 mg p.o. once per day. 5. synthroid 75 mcg p.o. once per day. 6. lasix 40 mg p.o. once per day. 7. irbesartan 300 mg p.o. once per day. social history: the patient is married. he works at home. he is employed as an investment advisor. he has two children; ages 22 and 16. he denies the use of tobacco, alcohol, and drugs. family history: mother is status post a valve repair. father with diabetes mellitus. physical examination on presentation: general physical examination revealed an obese male lying in bed with face mask. the patient initially to be in no apparent distress. head, eyes, ears, nose, and throat examination revealed normocephalic and atraumatic. pupils were equally round and reactive to light. extraocular movements were intact. the mucous membranes were moist. the oropharynx was clear. the neck was supple. difficult to assess jugular venous distention due to body habitus. right internal jugular was in place. heart examination revealed bradycardia in the 40s. normal first heart sounds and second heart sounds. no murmurs, rubs, or gallops. the lungs revealed bibasilar crackles. the abdomen was obese, nontender, and nondistended. positive bowel sounds. extremity examination revealed 1+ lower extremity edema. right first toe with ulcer. left first toe with hyperkeratosis on the plantar surface. neurologic examination evaluated alert and oriented times three. cranial nerves ii through xii were grossly intact. examination was otherwise nonfocal. pertinent laboratory values on presentation: laboratory data revealed white blood cell count was 9.7, hematocrit was 33.7, and platelet count was 204. chemistries were significant for a potassium of 6.6, blood urea nitrogen was 54, and creatinine was 1.9. magnesium was 2.2. creatine kinase was 341. the second creatine kinase was 348. the third creatine kinase was 240. a toxicology screen was negative. pertinent radiology/imaging: a chest x-ray was consistent with pulmonary edema. electrocardiogram revealed a heart rate in the 40s, a junctional rhythm versus atrial fibrillation, with low rate. a left bundle-branch block (old). left axis deviation. impression: this is a 57-year-old male with nonischemic cardiomyopathy, type 2 diabetes mellitus, hypertension, sarcoidosis, and hypercholesterolemia status post a syncopal episode with a heart rate initially in the 20s and an electrocardiogram consistent with probable junctional rhythm. the patient was admitted to the coronary care unit for further management. hospital course: the patient was maintained on a dopamine drip to maintain his heart rate and blood pressure. his cardiac enzymes were cycled to rule out an ischemic event, and they peaked with a creatine kinase of 348. cardiac troponin was 0.9. the patient was administered aspirin. the patient underwent an electrophysiology study. mapping disclosed dysfunction of the patient's sinus node. the patient underwent placement of a dual-mode, dual-pacing, dual-sensing pacemaker. his heart rate was atrioventricularly paced in the 80s, and his blood pressure was stable off of dopamine. the patient was extubated the following morning and remained stable. an echocardiogram with contrast was performed. the left atrium was normal in size. the left ventricular wall thickness was normal. the left ventricular cavity size was normal. overall left ventricular systolic function was mildly depressed. resting regional wall motion abnormalities included anteroseptal hypokinesis. the right ventricular chamber size and free wall motion were normal. the aortic valve leaflets appeared structurally normal with good leaflet excursion, and no aortic regurgitation. the mitral valve leaflets were mildly thickened, and trivial mitral regurgitation was seen. there was no pericardial effusion. the ejection fraction was estimated to be between 45% to 50%. discharge status: discharge status was to home. discharge instructions/followup: 1. the patient was to follow up with his primary care physician (dr. in two weeks. 2. the patient was to follow up in the electrophysiology clinic on . medications on discharge: 1. metformin 1 g p.o. twice per day. 2. levothyroxine 75 mcg p.o. once per day. 3. atorvastatin 20 mg p.o. once per day. 4. aspirin 325 mg p.o. once per day. 5. atenolol 100 mg p.o. once per day. 6. irbesartan 300 mg p.o. once per day. 7. lasix 40 mg p.o. once per day. discharge diagnoses: 1. sinus node dysfunction with apparent junctional rhythm. 2. old left bundle-branch block. 3. status post dual-mode, dual-pacing, dual-sensing pacemaker placement. 4. reduced ejection fraction of 45% to 50%. 5. hypothyroidism. 6. type 2 diabetes mellitus. 7. hypercholesterolemia. 8. sarcoidosis. , m.d. dictated by: medquist36 procedure: continuous invasive mechanical ventilation for less than 96 consecutive hours venous catheterization, not elsewhere classified insertion of endotracheal tube catheter based invasive electrophysiologic testing initial insertion of dual-chamber device initial insertion of transvenous leads [electrodes] into atrium and ventricle angiocardiography of venae cavae diagnoses: other primary cardiomyopathies hyperpotassemia acute kidney failure with lesion of tubular necrosis diabetes mellitus without mention of complication, type ii or unspecified type, not stated as uncontrolled unspecified acquired hypothyroidism sarcoidosis hypotension, unspecified sinoatrial node dysfunction syncope and collapse 

Answer: The patient is high likely exposed to