Asystole is the total absence of ventricular electrical activity. Would defibrillation be effective in this situation?
1) Defibrillation would not be effective: it interrupts chaotic electrical activity in the heart, and if there is no electrical activity, then there is nothing to interrupt.
2) Defibrillation would be effective, because it resets the heart's electrical activity.
3) Defibrillation would be effective, because it targets the SA node to induce its autorhythmic activity.
4) Defibrillation would be effective: it repolarizes the cardiac cells, allowing the heart to function normally again.