What does a normal ECG mean?

A normal ECG (electrocardiogram) is a test that measures the electrical activity of your heart. It records the timing and strength of electrical signals as they pass through each part of your heart. This information helps doctors to diagnose any abnormalities or underlying medical conditions such as arrhythmias (irregular heartbeat) or coronary artery disease.

A normal ECG will typically show three different types of waveforms, which are measured in millivolts: P wave, QRS complex, and T wave. The P waves indicate atrial depolarization; the QRS complexes represent ventricular depolarization; and the T waves represent ventricular repolarization. Each section should have a distinct shape for it to be considered healthy.

In addition to these waveforms, there are other important measurements associated with a normal ECG including rate (or beats per minute), rhythm, PR interval (which indicates communication between top and bottom chambers of your heart), QT interval (the time it takes for ventricles to fill up with blood and contract), axis angle (the position in which your heart is situated within your chest cavity). All together these parameters provide vital clues about how well your heart is functioning – providing essential insight into any potential cardiac issues that may require further evaluation or treatment by specialists.