What should be done if an AED prompts a "no shock advised" message?

When an AED indicates "no shock advised," it means that the device has analyzed the heart rhythm and determined that it is not in a shockable state, such as ventricular fibrillation or pulseless VT. Continuing CPR is essential because it helps maintain blood circulation and oxygenation to vital organs, particularly the brain. High-quality CPR enhances the chances of successful defibrillation if the rhythm changes back to a shockable state later on.

During CPR, the rescuer should ensure that chest compressions are uninterrupted and adequate in depth and rate, providing ventilations if trained to do so. Waiting for advanced help without continuing CPR would not provide any meaningful support for the cardiac arrest victim. Therefore, continuing CPR until advanced help arrives is the appropriate action to take following an AED's "no shock advised" message.