Which arrhythmia is represented by the abbreviation VT?

Ventricular tachycardia is represented by the abbreviation VT. This arrhythmia occurs when the ventricles of the heart beat at a rapid pace, typically exceeding 100 beats per minute. It can occur in healthy hearts but is more commonly seen in individuals with underlying heart conditions, such as coronary artery disease or cardiomyopathy.

In ventricular tachycardia, the electrical signals that trigger heart contractions originate in the ventricles instead of the atria, leading to an ineffective pump function and decreased cardiac output. This can result in symptoms such as palpitations, dizziness, or syncope. Understanding this arrhythmia is crucial, especially in emergency medicine, as it can escalate to more serious conditions, including ventricular fibrillation, if not promptly treated.

The other terms listed do not accurately describe this medical condition and do not have established meanings in the context of arrhythmias.