Electrocardiogram Test in Waco, Tx An electrocardiogram (ECG) is a non-invasive test that records the heart’s electrical activity. It’s used to look for abnormal heart rhythms and conditions, such as coronary artery disease. Electrocardiogram An electrocardiogram (EKG or ECG) is a test that measures the electrical activity of your heart. An EKG can show how...Read More