The app lets you compare the normal appearance of an ECG with all abnormalities, like Ventricular fibrillation, Atrial flutter, or heart block. When you compare these strips side-by-side, you'll spot the subtle changes and become a master at reading an Electrocardiogram. After learning to read an ECG, you can scroll down and learn the causes of that abnormality and the situations where it arises. You'll also learn the medical treatments and complications. The apps imply has everything you need to know to become a skillful ECG expert. Please note: don't self-diagnose or self-treat. This app is designed to help medical professionals revise ECG readings and memorize the small changes. It's not meant to be used as a diagnosis or treatment tool, but rather as a study/revision tool.