Which of the following is a characteristic of ventricular tachycardia?

Ventricular tachycardia is characterized by a rapid heartbeat that originates from the ventricles of the heart. In this condition, the heart beats so quickly that it often fails to pump blood effectively, which can lead to decreased perfusion to vital organs. This is a critical point because the speed of the heartbeat in ventricular tachycardia—often exceeding 100 beats per minute—can compromise the heart's ability to fill with blood and then pump it out efficiently. As a result, it can cause symptoms of inadequate blood flow, such as dizziness, chest pain, or loss of consciousness. Understanding this characteristic is essential for emergency medical technicians as it highlights the urgency of recognition and treatment in a clinical setting.