Q. How does an ECG electrode works?

Answer

An ECG electrode connects to an electrocardiogram machine via wires. The electrodes (sticky pads) are placed on the skin surface, like limb or chest, to detect electrical changes in heart caused by repeated depolarization. The ECG machine records the electrical activity of the heart over a span of time, usually 10 seconds. This helps to regulate heartbeats, the chamber’s position, any damage to the heart, and effect of medication.