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: addendum: on discharge medications please change as follows: please change potassium chloride - delete the one that was previously listed - and list potassium chloride 20 meq p.o. once a day for 10 days. , procedure: venous catheterization, not elsewhere classified extracorporeal circulation auxiliary to open heart surgery combined right and left heart cardiac catheterization coronary arteriography using a single catheter diagnostic ultrasound of heart open and other replacement of aortic valve transfusion of packed cells diagnoses: acidosis unspecified pleural effusion unspecified essential hypertension diabetes mellitus without mention of complication, type ii or unspecified type, not stated as uncontrolled hematoma complicating a procedure rheumatic heart failure (congestive) other and unspecified hyperlipidemia mitral valve insufficiency and aortic valve stenosis 

Answer: The patient is high likely exposed to