An electrocardiogram (ECG or EKG) is a test that records the electrical activity of the heart. It is a commonly used diagnostic tool to detect and monitor heart problems.
The ECG shows the electrical signals that control the heart’s rhythm and contractions. The test records the electrical activity of the heart as a series of waveforms, which are displayed on a graph. The different waves represent different phases of the heart’s activity, including the depolarization and repolarization of the atria and ventricles.
ECG can provide information about the heart rate, rhythm, and strength of the electrical signals. It can also show if there is any damage to the heart muscle, if there are any abnormalities in the heart’s structure, or if there is an insufficient blood supply to the heart.
Overall, the ECG is an essential tool for diagnosing and monitoring many heart conditions, including arrhythmias, heart attacks, heart failure, and congenital heart defects.
