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 74 year old gentleman with a known history of coronary artery disease, who was diagnosed in , with non st elevation myocardial infarction. the patient was managed medically and was in his usual state of health until two to three weeks prior to admission, complaining of shortness of breath at rest. on the evening of admission, the patient complained of chest pain and dizziness, and was taken to the emergency department. electrocardiogram showed old inferior wall myocardial infarction with st depression in i and avl as well as v5 and v6 and borderline st elevation in iii and avf. the patient was admitted to and taken for cardiac catheterization. cardiac catheterization showed an ejection fraction of 24 percent, global hypokinesis, one plus mitral regurgitation, 100 percent proximal right coronary artery lesion, 60 percent left main lesion, 70 percent proximal left anterior descending coronary artery lesion, 80 percent mid left anterior descending coronary artery lesion, and 70 percent first diagonal, 90 percent mid circumflex and 90 percent obtuse marginal one. the patient was referred to dr. for cardiac surgery. past medical history: status post myocardial infarction in . coronary artery disease. hypertension. noninsulin dependent diabetes mellitus. hypercholesterolemia. gastroesophageal reflux disease. hiatal hernia. status post total knee replacement eight years ago. spinal stenosis with back surgery approximately five to six years ago. allergies: no known drug allergies. medications on admission: 1. lopressor. 2. captopril. 3. aspirin. 4. glyburide. 5. lipitor. social history: the patient lives at home with wife. is a retired bakery owner. the patient is a former heavy smoker with a fifteen pack year history, quit eight to ten years ago, and now currently smokes one to two cigarettes a week. hospital course: the patient was admitted to and on hospital day number two, the patient had a noninvasive carotid ultrasound which showed less than 40 percent narrowing of bilateral internal carotid artery and on , the patient was taken to the operating room with dr. for a coronary artery bypass graft times four with left internal mammary artery to left anterior descending coronary artery, saphenous vein graft to diagonal, saphenous vein graft to obtuse marginal and saphenous vein graft to posterior descending coronary artery. total cardiopulmonary bypass time 82 minutes, cross clamp time 57 minutes. please see operative note for full details. the patient was transferred to the intensive care unit on milrinone, levophed, epinephrine, propofol infusions. on the first postoperative evening, the patient was unable to wean from mechanical ventilation due to mixed metabolic and respiratory acidosis. on early morning postoperative day number one, the patient had an episode of supraventricular tachycardia with heart rate of 200 and hypotension. the patient was cardioverted with 200 joules and started on amiodarone infusion with appropriate response of blood pressure as the patient became more awake. the patient was significantly agitated on propofol. the patient was started on a prosect infusion and had mild hypoxia. the peep was increased to eight with good response of his po2. the patient was weaned and extubated the morning of postoperative day number one. shortly after being extubated, the patient developed atrial fibrillation. the patient was rebolused with amiodarone and had electrolyte repletion. however, he continued to have atrial fibrillation with not a significant change in his hemodynamics. the patient continued on milrinone and neo-synephrine for hemodynamic support. the patient continued to be mildly hypoxic requiring an open face mask. the patient began receiving doses of intravenous lopressor for rate control of the atrial fibrillation and continued on a milrinone infusion for the hypoxia. the patient was started on diuresis and subsequently lasix drip to maintain adequate urine output. on postoperative day number two, the milrinone was decreased. the patient continued to have adequate cardiac output, however, the patient's creatinine began to rise, 1.8 on postoperative day number two. on postoperative day number three, the patient was becoming progressively more hypoxic and his cardiac indices as well as his mixed venous oxygen saturation were decreasing. the patient continued in atrial fibrillation and decision was made to attempt cardioversion from the atrial fibrillation. anesthesia admitted sedation and cardioversion was attempted, however, unsuccessful. electrophysiology was at the patient's bedside, recommended continuing the amiodarone as well as anticoagulation. the evening of postoperative day number three the patient began to be mildly confused. over the evening on postoperative day number three, the patient became progressively more confused. the early morning of postoperative day number four, the patient had become more agitated and had increasing work of breathing. the patient had an acute decrease in his blood pressure as well as bradycardia. anesthesia was called stat to the patient's bedside and the patient was intubated emergently. the patient received low dose epinephrine with good response and return of blood pressure. postintubation chest x-ray showed pulmonary edema and left upper lobe infiltrate. sputum had shown gram negative rods. the patient was started on ciprofloxacin. the patient continued to be on a heparin infusion for his atrial fibrillation. the patient's milrinone which had been increased during postoperative day number four was decreased as once the patient was reintubated, the patient's hemodynamics significantly improved with improvement in the po2 as well as the cardiac index. the patient's lasix drip had been stopped due to the hemodynamic instability and the patient was restarted on low dose intermittent lasix. on postoperative day number five, the patient was again cardioverted and attempt successfully into sinus rhythm with mild improvement in the hemodynamic indices. the patient continued to require mechanical ventilation and the evening of postoperative day number five the patient was back in atrial fibrillation and attempts at cardioversion were unsuccessful. on postoperative day number six, the patient remained intubated and had a feeding tube placed by interventional radiology. the patient was started on prosect to maintain an adequate level of sedation without significant agitation. pulmonary consultation was obtained due to the patient's difficulty weaning from mechanical ventilation. recommendations were made as far as ventilator settings and bronchodilators and inhaled steroids. by postoperative day number ten, the patient was able to be weaned from mechanical ventilation. the patient continued to have episodes of atrial fibrillation. on postoperative day number six, the patient had a low grade temperature. on postoperative day number eight, the patient had increasing temperature with a normal white blood cell count. sputum had gram negative rods. blood cultures drawn on postoperative day number eight subsequently grew coagulase negative staphylococcus for which the patient was started on vancomycin and the fevers resolved. the patient continued on amiodarone and respiratory status improved with aggressive diuresis and pulmonary toilet. the patient began to ambulate with the assistance of the nurses. the patient's central line has been removed several days prior due to the positive blood cultures. the patient had continued on p.o. nutrition and appeared to tolerate well. the patient continued to receive aggressive pulmonary toilet over the next several days and by postoperative day number sixteen, the patient had improved sufficiently to transfer from the intensive care unit to the regular part of the hospital. by postoperative day number eighteen, the patient was cleared for discharge to rehabilitation facility. condition on discharge: temperature 98.3, pulse 69 and sinus rhythm, blood pressure 148/55, respiratory rate 18, oxygen saturation 99 percent on two liters. the patient's weight on , is 97.9 kilograms. the patient weighed 100 kilograms preoperatively. neurologically, the patient is awake, alert and oriented times three. the heart is regular rate and rhythm without rub or murmur. respiratory - breath sounds are rancorous, decreased bilateral bases. gastrointestinal - positive bowel sounds, soft, nontender, nondistended, tolerating regular diet. extremities - trace to one plus edema. sternal incision is clean, dry and intact. sternum is stable. vein harvest site on the left leg is clean, dry and intact. laboratory data showed white blood cell count 11.6, hematocrit 38.0, platelet count 553,000. sodium 140, potassium 5.2, chloride 103, bicarbonate 30, blood urea nitrogen 24, creatinine 1.3 and glucose 54. prothrombin time 15.2, inr 1.5. medications on discharge: 1. lopressor 25 mg p.o. twice a day. 2. flovent meter dose inhaler 110 mcg two puffs p.o. twice a day. 3. digoxin 0.125 mg p.o. once daily. 4. protonix 40 mg p.o. once daily. 5. captopril 37.5 mg p.o. three times a day. 6. lasix 40 mg p.o. twice a day times seven days. 7. percocet 5/325 one to two p.o. q4-6hours p.r.n. 8. combivent meter dose inhaler two puffs p.o. four times a day. 9. vancomycin one gram intravenously twice a day for seven days. 10. aspirin 81 mg p.o. once daily. 11. glyburide 5 mg p.o. q.a.m. and 2.5 mg p.o. q.p.m. 12. amiodarone 400 mg p.o. once daily. 13. coumadin is to be titrated with a goal inr of 2.0 to 2.5. discharge diagnoses: coronary artery disease. status post coronary artery bypass graft times four. noninsulin dependent diabetes mellitus. chronic obstructive pulmonary disease. hypertension. hypercholesterolemia. postoperative respiratory failure. postoperative atrial fibrillation. coagulase negative staphylococcus bacteremia. follow up: the patient is to follow-up with his primary care physician, . in one to two weeks. he is to follow- up with his cardiologist in one to two weeks, and he is to follow-up with dr. in three to four weeks. the patient is to be discharged to rehabilitation in stable condition. , m.d. procedure: venous catheterization, not elsewhere classified continuous invasive mechanical ventilation for 96 consecutive hours or more (aorto)coronary bypass of three coronary arteries single internal mammary-coronary artery bypass extracorporeal circulation auxiliary to open heart surgery coronary arteriography using two catheters parenteral infusion of concentrated nutritional substances angiocardiography of left heart structures left heart cardiac catheterization diagnostic ultrasound of heart insertion of endotracheal tube enteral infusion of concentrated nutritional substances arterial catheterization atrial cardioversion diagnoses: coronary atherosclerosis of native coronary artery intermediate coronary syndrome unspecified essential hypertension diabetes mellitus without mention of complication, type ii or unspecified type, not stated as uncontrolled chronic airway obstruction, not elsewhere classified cardiac complications, not elsewhere classified atrial fibrillation bacteremia 

Answer: The patient is high likely exposed to