What is the full form of ECG?AElectricity cardiac groupBElectrocardio groupCElectrocardium granulesDElectrocardiogramAnswer: D. Electrocardiogram Read Explanation: ECG stands for Electrocardiogram. ECG is a graphical representation of the electrical activity of the heart during a cardiac cycle. It is measured with the help of a machine called an electrocardiograph. Read more in App