This app is designed to help the beginning cardiographic sonographer to quickly and accurately assess the left ventricular ejection by eye, by providing many echo video clips showing vetted EF percentages ranging from 10% to 75%. In the hospital setting, many times after the patient has undergone a surgical heart procedure (e.g. aortic valve replacement) or had a heart attack (NSTEMI) a request for an echo is made primarily to find out what the patient's ejection fraction is. You might be aske