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: no known allergies / adverse drug reactions attending: addendum: mr. was kept in the hospital for confusion, impulsivity, an episode of hypotension in which further observation was warranted. narcotics were discontinued. his lasix was stopped and beta-blocker decreased. he continued to progress and on pod# 7 dr. cleared him for discharge to home. all follow up appointments were advised. discharge disposition: home md procedure: single internal mammary-coronary artery bypass extracorporeal circulation auxiliary to open heart surgery coronary arteriography using two catheters left heart cardiac catheterization (aorto)coronary bypass of four or more coronary arteries diagnoses: other iatrogenic hypotension coronary atherosclerosis of native coronary artery unspecified essential hypertension diabetes mellitus without mention of complication, type ii or unspecified type, not stated as uncontrolled personal history of tobacco use other and unspecified angina pectoris old myocardial infarction examination of participant in clinical trial other alteration of consciousness 

Answer: The patient is high likely exposed to