Electrocardiogram or EKG is is a test that checks for problems with the electrical activity of your heart. An EKG translates the heart's electrical activity into line tracings on paper. The spikes and dips in the line tracings are called waves.
Who couldn't use another #ekg cheat sheet? EKG also known as ECG stands for #electrocardiogram and is a tracing of the production and conduction of electrical activity through your heart as it creates "a heart beat"