SVT stands for Supraventricular Tachycardia, which is the correct answer. SVT is a type of abnormal heart rhythm characterized by a fast heart rate originating from above the ventricles. It is caused by abnormal electrical impulses in the heart, often originating from the atria. SVT can cause symptoms such as palpitations, dizziness, and shortness of breath. Treatment options for SVT include medications, vagal maneuvers, and in some cases, catheter ablation.