What is a key indicator that an AED is functional and in use?

A key indicator that an AED (Automated External Defibrillator) is functional and in use is the presence of an audible voice prompt or visual instructions. These prompts are designed to guide users through the process of using the AED effectively. When the device is powered on and ready to operate, it provides step-by-step instructions, ensuring that even individuals who may not be trained in CPR or defibrillation can use it successfully in an emergency situation. This feature enhances user confidence and ensures that critical actions are taken quickly and correctly during resuscitation efforts.

While a bright screen display, flashing lights, and the presence of a green light may signify that the AED is operational or ready for use, they do not provide the same level of guidance and reassurance that voice prompts or visual instructions do. These prompts are essential for facilitating timely and effective responses during cardiac emergencies.