By abtaining EKGs — testing the electronic activity of the heart through small electrode patches attached to the body — EKG technician is making a life-changing difference, helping people of all ages prevent and treat heart disease. As an EKG tech you will be able to set up EKG machine and apply 12-leads electorde to abtain EKGs (electrocardiograms); Prepare patients for Holter or ambulatory monitoring and carry out stress tests; Edit and deliver accurate test results to physicians for in-depth analysis.