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: patient recorded as having no known allergies to drugs attending: addendum: on examination the day of discharge, mr. was noted to have some erythema and warmth surrounding the endoscopic vein graft harvest site at his left knee and calf. he was started on keflex with plans to return the following week for a wound check. discharge medications: 1. metoprolol tartrate 25 mg tablet sig: three (3) tablet po bid (2 times a day). 2. aspirin 81 mg tablet, delayed release (e.c.) sig: one (1) tablet, delayed release (e.c.) po daily (daily). 3. pantoprazole 40 mg tablet, delayed release (e.c.) sig: one (1) tablet, delayed release (e.c.) po q24h (every 24 hours). 4. atorvastatin 10 mg tablet sig: one (1) tablet po daily (daily). 5. celecoxib 200 mg capsule sig: one (1) capsule po qd (). 6. amiodarone 200 mg tablet sig: two (2) tablet po daily (daily): 400 mg daily x 1 week (), then 200 mg ongoing . 7. colace 100 mg capsule sig: one (1) capsule po twice a day. 8. furosemide 40 mg tablet sig: one (1) tablet po once a day. 9. potassium chloride 10 meq capsule, sustained release sig: two (2) capsule, sustained release po once a day. 10. warfarin 1 mg tablet sig: two (2) tablet po daily (daily). 11. cephalexin 500 mg capsule sig: one (1) capsule po q6h (every 6 hours) for 7 days. discharge disposition: extended care facility: healthcare, md procedure: continuous invasive mechanical ventilation for less than 96 consecutive hours extracorporeal circulation auxiliary to open heart surgery combined right and left heart cardiac catheterization coronary arteriography using two catheters (aorto)coronary bypass of two coronary arteries injection or infusion of platelet inhibitor injection or infusion of platelet inhibitor diagnostic ultrasound of heart excision or destruction of other lesion or tissue of heart, open approach reopening of recent thoracotomy site open and other replacement of aortic valve with tissue graft other operations on heart and pericardium transfusion of packed cells transfusion of other serum transfusion of platelets excision of lingual thyroid percutaneous transluminal coronary angioplasty [ptca] procedure on single vessel diagnoses: thrombocytopenia, unspecified coronary atherosclerosis of native coronary artery pure hypercholesterolemia atrial fibrillation hemorrhage complicating a procedure personal history of other malignant neoplasm of skin mitral valve stenosis and aortic valve stenosis arthropathy, unspecified, site unspecified 

Answer: The patient is high likely exposed to