Generally, CPR (Cardiopulmonary Resuscitation) comes first, unless an AED (Automated External Defibrillator) is immediately available.
Here's a breakdown of why:
-
CPR Delays Tissue Death: CPR helps circulate oxygenated blood throughout the body, buying valuable time until definitive treatment (like defibrillation) can be delivered. Without CPR, irreversible brain damage can occur within minutes of cardiac arrest.
-
AED Assessment and Shock: An AED analyzes the heart's rhythm and determines if a shock is necessary. This takes a few seconds. Starting CPR immediately ensures blood is circulating while the AED is being retrieved and prepared.
-
Immediate AED Availability: If an AED is right next to you (within arm's reach), it should be used immediately. Turn it on and follow the device's voice prompts. It will guide you through the process.
-
AED Takes Precedence After Initial Steps: Once the AED is turned on and attached, it takes precedence. The AED will guide you on whether to deliver a shock or continue CPR. Always follow the AED's instructions.
In Summary:
- Assess the situation: Check for responsiveness and breathing.
- Call for help: Dial emergency services (e.g., 911) or have someone else do it.
- Begin CPR: If the person is not breathing or is only gasping, start chest compressions immediately.
- Retrieve AED: If an AED is nearby, have someone retrieve it while you continue CPR.
- Use AED: Once the AED is available, turn it on, attach the pads as instructed, and follow the device's voice prompts.
Therefore, the default is to start CPR unless an AED is immediately at hand. The AED then guides the next steps.
