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: morphine attending: addendum: addendum to discharge summary for date . it should be noted that in both the past medical history and the discharge diagnosis section the patient has chronic renal insufficiency-baseline creatinine 1.5. additionally the patient did have post operative anemia requiring a transfusion of 2 units of packed red blood cells after surgery. the post-operative anemia was due to a combination of blood loss and aggressive fluid resuscitation in the post-operative period. discharge disposition: home with service facility: vna of southeastern mass. md procedure: extracorporeal circulation auxiliary to open heart surgery combined right and left heart cardiac catheterization coronary arteriography using two catheters open and other replacement of aortic valve with tissue graft diagnoses: coronary atherosclerosis of native coronary artery pure hypercholesterolemia unspecified essential hypertension acute posthemorrhagic anemia aortocoronary bypass status aortic valve disorders 

Answer: The patient is high likely exposed to