An electrocardiography test (also known as an “ECG” or an “EKG”) records the electrical activity of your heart and can detect whether there may be any abnormal patterns associated with heart disease. It is completed by placing electrodes on the patient’s chest, which can then record the electrical changes that occur as the heart beats. It can also detect electrical abnormalities commonly known as “arrhythmia” that patients sometimes may or may not feel. It is done at most visits to your Cardiologist.