Which statement best describes the rationale for defibrillation in pediatric VT/VF?

Which statement best describes the rationale for defibrillation in pediatric VT/VF?

• A. To gradually restore perfusion
• B. To terminate a life-threatening arrhythmia and restore organized rhythm
• C. To decrease heart rate
• D. To reduce diastolic blood pressure

Answer: (B)

Defibrillation works by stopping the chaotic electrical activity of a life-threatening ventricular rhythm, with the goal of allowing the heart’s normal pacemaker and conduction system to resume an organized rhythm. A rapid, large electrical depolarization across the ventricles essentially “resets” the heart, so CPR can help maintain perfusion in the moments before a stable rhythm is restored. It is not about gradually restoring perfusion, lowering heart rate, or reducing diastolic blood pressure. The purpose is to terminate the dangerous arrhythmia and restore an organized rhythm that can produce effective cardiac output.

Defibrillation works by stopping the chaotic electrical activity of a life-threatening ventricular rhythm, with the goal of allowing the heart’s normal pacemaker and conduction system to resume an organized rhythm. A rapid, large electrical depolarization across the ventricles essentially “resets” the heart, so CPR can help maintain perfusion in the moments before a stable rhythm is restored. It is not about gradually restoring perfusion, lowering heart rate, or reducing diastolic blood pressure. The purpose is to terminate the dangerous arrhythmia and restore an organized rhythm that can produce effective cardiac output.