APPLIED RADIOLOGICAL ANATOMY

Detailed explanation-1: -Tachycardia (tak-ih-KAHR-dee-uh) is the medical term for a heart rate over 100 beats a minute. Many types of irregular heart rhythms (arrhythmias) can cause tachycardia. A fast heart rate isn’t always a concern. For instance, the heart rate typically rises during exercise or as a response to stress.

Detailed explanation-2: -A fast heart rate may correct itself. But sometimes medication or other medical treatments are needed to slow down the heartbeat.

Detailed explanation-3: -Ventricular tachycardia (VT) is a fast, abnormal heart rhythm (arrhythmia). It starts in your heart’s lower chambers, called the ventricles. VT is defined as 3 or more heartbeats in a row, at a rate of more than 100 beats a minute. If VT lasts for more than a few seconds at a time, it can become life-threatening.