Final answer:
After initiating CPR on an unresponsive and pulseless individual, use the AED if available, even in the presence of an implanted cardioverter/defibrillator. Follow the verbal instructions and apply the AED without delay. Continue CPR after shock delivery or if no shock is advised until professional help arrives.
Step-by-step explanation:
If you encounter an unresponsive 65-year-old man who is apneic and pulseless, the correct action after initiating CPR is to use an Automated External Defibrillator (AED) if one is available. The patient's automatic implanted cardioverter/defibrillator is a device meant to correct arrhythmias, but it may not be functioning properly if the patient is in cardiac arrest. After calling for emergency medical help and starting CPR, look for an AED. These devices are commonly found in public places and ambulances due to their life-saving capabilities. The AED provides verbal instructions, analyzes the patient's heart rhythm, and delivers an electric shock if necessary to re-establish an effective heart rhythm. CPR should be continued until the AED is ready to use, as high-quality chest compressions are crucial for maintaining blood flow, especially to the brain.
AEDs are designed to be used by both medical professionals and lay persons. The device will guide you through the process and should not interfere with the implanted cardioverter/defibrillator. Follow the AED's instructions carefully, which typically involve applying the pads around the device, ensuring no one is touching the patient, and allowing the AED to analyze the rhythm and deliver a shock if indicated. It's important to resume CPR immediately after the shock, or if no shock is advised, until emergency medical services arrive or there is a return of spontaneous circulation.