After delivering the first AED shock, immediately follow the AED's prompts. The AED will guide you on the next steps, which typically involve continuing CPR.
Following the AED's Instructions is Key
The AED is designed to analyze the heart rhythm and provide instructions tailored to the situation. Here's what generally happens after the first shock:
- AED Analysis: The AED will re-analyze the person's heart rhythm after delivering the shock.
- AED Voice Prompts: Listen carefully to the AED's instructions. It will tell you one of two things:
- "No shock advised" and/or "Begin CPR": If the AED indicates "no shock advised" or prompts you to begin CPR, start chest compressions immediately. Continue with cycles of 30 chest compressions and 2 rescue breaths (if trained to do so).
- "Shock advised": The AED will advise a second shock if it detects a shockable rhythm again. Allow the AED to deliver the shock.
Continuing CPR Until Further Notice
If the AED prompts you to continue CPR (either after delivering a shock or indicating no shock is advised), it is crucial to do so.
- Chest Compressions: Perform high-quality chest compressions:
- Push hard and fast in the center of the chest.
- Compress at a rate of 100-120 compressions per minute.
- Compress to a depth of at least 2 inches (5 cm) but no more than 2.4 inches (6 cm) for adults.
- Allow the chest to fully recoil between compressions.
- Rescue Breaths: If you are trained to give rescue breaths, deliver 2 breaths after every 30 chest compressions. If you are not trained or are uncomfortable giving rescue breaths, continue chest compressions only.
- Continue the Cycle: Continue cycles of compressions and breaths (if applicable) until:
- The person shows obvious signs of life (e.g., breathing, moving).
- The AED prompts you to stop for another analysis.
- Emergency medical services (EMS) arrive and take over.
Important Considerations
- Minimize Interruptions: Minimize interruptions to chest compressions as much as possible.
- Follow AED Prompts: The AED is your guide. Always prioritize following its instructions.
- Be Prepared for Further Shocks: The AED may advise additional shocks. Be prepared to deliver them as instructed.
- Communicate with EMS: When EMS arrives, provide them with all relevant information, including the number of shocks delivered and the time they were administered.
By following these steps and continuing CPR as directed by the AED, you significantly increase the person's chances of survival.
