electrocardiography

Electrocardiography, or ECG, is a test that records the electrical activity of the heart. As the heart beats, it produces tiny electrical signals that can be detected and traced on paper or a screen. This helps doctors assess the heart's rhythm, detect irregularities, and identify issues like blocked arteries or previous heart attacks. The ECG provides a visual representation of the timing and strength of electrical signals, offering valuable insights into heart health without invasive procedures. It is a quick, painless, and essential tool in diagnosing and monitoring cardiac conditions.