Have you ever had an ekg test done? An EKG stands for electrocardiogram and it is a test that checks the activity of your heart over a period of time. I believe it can see if you had a heart attack or if your heart is not functioning properly. It can be a nerve racking test although it does not hurt. Nerve racking in the sense that you can be worried about the results of the test, while taking it. There are different types of EKG machines that a doctor or ER can use to preform the test. I always wondered can the results of the test be affected if you are worried while they are giving you the test. If anyone knows the answer please chime in on this.