Medical Glossary
Up one levelFind definitions for medical terms here.
- Ventricular Fibrillation
- A rapid and disordered heart rhythm from the lower heart chambers. The heart cannot effectively pump blood, which may result in sudden collapse and death unless there is immediate defibrillation.
- Ventricular Tachycardia
- A rapid heartbeat originating in the lower chambers, associated with fainting and sudden death.

