What Is an ECG?

We have seen doctors using Stethoscope to examine patients. By using the stethoscope doctors listen to the internal sounds of the body, especially heart beating, lungs, intestines etc. During each heart beat, small electrical signals are generated along with the sound. This electrical activity of human heart is measured and monitored by using electrocardiogram (ECG). Electrodes are attached to the outer surface of the skin, which detects the signals. These signals are amplified and recorded on ECG paper by ECG machine. For diagnosis and monitoring of heart and heart diseases different types of ECG is used. Resting ECG A Resting Electrocardiogram (ECG) is used to analyze how the heart performs when the person is at rest. This test aids the doctor in evaluating the condition of the heart. It is also used to monitor patients who have undergone an angiogram, angioplasty, cardiac surgery or change in dosage of heart medication. The Resting ECG helps to detect a wide range of heart con...