An electrocardiogram is a noninvasive and safe procedure to monitor the electrical signals in the heart. Every time the heart beats, an electrical impulse moves through the heart. This electric impulse is generated by some special cells in the right upper heart chamber. Electrocardiogram, which is also known an EKG or ECG, helps to record the electrical impulse as they move through the heart. An electrocardiogram is advised, in order to help the doctor understand the irregularities in the rhythms or patterns of the heartbeat in a patient's heart. This further helps in detecting various abnormalities or heart problems. Electrocardiogram is a short and safe procedure and the patient can get the report on the same day, when the ECG procedure is performed. In this procedure, the electrodes or the test sensors are used to record the patterns of the heartbeat.