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: iodine attending: addendum: patient was kept an additional day due to episode of lightheadedness and diaphoresis. no arryhthmia was noted at the time, bp 123/79 hr 80's and bs 149. percocet was discontinued and he was observed for an additional 24 hrs without any further episodes. he was hemodynamically stable at the time of discharge - bp 120/70's, hr 80's. he was discharged home with vna services on pod 11 on no antihypertensive agents - tylenol only for pain. he is to follow up with his cardiologist in 1 week for further adjustment in medications. discharge disposition: home with service facility: md procedure: extracorporeal circulation auxiliary to open heart surgery open and other replacement of aortic valve cardiopulmonary resuscitation, not otherwise specified diagnoses: other iatrogenic hypotension congestive heart failure, unspecified unspecified essential hypertension intestinal bypass or anastomosis status aortic valve disorders chronic systolic heart failure long-term (current) use of anticoagulants personal history of malignant neoplasm of large intestine syncope and collapse dizziness and giddiness other and unspecified agents primarily affecting the cardiovascular system causing adverse effects in therapeutic use sympatholytics [antiadrenergics] causing adverse effects in therapeutic use other disease of nasal cavity and sinuses 

Answer: The patient is high likely exposed to