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: lasix 40 mg tablet sig: one (1) tablet po twice a day: please take 40 mg twice a day for seven days then decrease to 400 mg daily for 7 days - please follow up with cardiologist prior to completion . disp:*21 tablet(s)* refills:*0* correction for above prescription - spoke with at 1715 - lasix 40 mg twice a day for 2 weeks then decrease to 40 mg once a day discharge disposition: home with service facility: all care vna of greater md procedure: extracorporeal circulation auxiliary to open heart surgery open heart valvuloplasty of mitral valve without replacement operations on chordae tendineae diagnoses: esophageal reflux mitral valve disorders unspecified pleural effusion unspecified essential hypertension chronic airway obstruction, not elsewhere classified personal history of tobacco use other opiates and related narcotics causing adverse effects in therapeutic use paroxysmal ventricular tachycardia nausea with vomiting obesity, unspecified 

Answer: The patient is high likely exposed to