ECG

ECG stands for electrocardiogram, which is a medical test that measures the electrical activity of the heart. The test involves placing electrodes on the skin of the chest, arms, and legs, which are then connected to a machine that records the heart's electrical activity.

The electrical activity of the heart is represented as a graph, called an electrocardiogram or ECG. The ECG graph shows the timing and strength of electrical signals as they travel through the heart, indicating how well the heart is functioning.

Doctors use ECGs to diagnose and monitor heart conditions such as arrhythmias, heart attacks, and heart disease. The test is non-invasive and painless, and typically takes only a few minutes to complete.