An AED (automated external defibrillator) should be used before or after CPR?

When it comes to using an Automated External Defibrillator (AED) in the event of a cardiac arrest, it is advised to use the AED as soon as it is available, ideally after the initial set of CPR (Cardiopulmonary Resuscitation) compressions. Here’s why:

1. Immediate CPR: Begin CPR immediately after confirming that the person is unresponsive and not breathing normally. This helps circulate blood to vital organs, buying time for the AED to arrive.

2. Early AED Application: Once the AED is available, it should be used promptly. Turn it on and follow the audio-visual prompts. The AED will assess the heart rhythm and advise whether a shock is needed.

3. Post Shock CPR: If the AED advises a shock and it is delivered, you should continue CPR immediately after the shock for about 2 minutes before the AED reanalyzes the heart rhythm.

By following this sequence – starting CPR first, using the AED, and then continuing CPR – you increase the chances of survival for someone experiencing a cardiac arrest. It is pivotal in emergency situations to act quickly and efficiently.