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Multiple Choice

Ventricular fibrillation is best described as which?

Ventricular fibrillation is a life-threatening condition where the ventricles quiver instead of contracting rhythmically, so there’s no effective heartbeat or blood flow. That makes it an emergency because brain and organ damage can happen within minutes if circulation isn’t restored. The essential response is immediate CPR to maintain perfusion and rapid defibrillation to stop the chaotic electrical activity and reset the heart’s rhythm. In advanced care, medications are added: epinephrine to improve coronary and cerebral perfusion during arrest, and an antiarrhythmic such as amiodarone or lidocaine to stabilize the rhythm and reduce the chance of recurrence after the shock. This combination—emergency status, the quivering ventricles, CPR, defibrillation, and appropriate drugs—best matches how ventricular fibrillation is managed.

Ventricular fibrillation is a life-threatening condition where the ventricles quiver instead of contracting rhythmically, so there’s no effective heartbeat or blood flow. That makes it an emergency because brain and organ damage can happen within minutes if circulation isn’t restored. The essential response is immediate CPR to maintain perfusion and rapid defibrillation to stop the chaotic electrical activity and reset the heart’s rhythm. In advanced care, medications are added: epinephrine to improve coronary and cerebral perfusion during arrest, and an antiarrhythmic such as amiodarone or lidocaine to stabilize the rhythm and reduce the chance of recurrence after the shock. This combination—emergency status, the quivering ventricles, CPR, defibrillation, and appropriate drugs—best matches how ventricular fibrillation is managed.