An electrocardiogram (ECG or EKG) records the electrical signal from the heart to check for different heart conditions. Electrodes are placed on the chest to record the heart’s electrical signals, which cause the heart to beat. The signals are shown as waves on an attached computer monitor or printer.
Electrocardiogram (ECG) technicians use special devices and medical techniques to record the electrical impulses transmitted by a patient’s heart. Data collection and analysis of ECGs by electrocardiogram technicians helps doctors, nurses and other healthcare professionals diagnose a patient’s disease.