What is a common feature of some AEDs that allows differentiation between adult and pediatric patients?

The correct answer emphasizes the importance of a device feature that enables the adjustment of energy levels for differing age groups. Some Automated External Defibrillators (AEDs) are equipped with a key or switch that allows the user to select either adult or pediatric modes. This feature is crucial because the energy levels needed for defibrillation vary significantly between adults and children. Using the appropriate energy level ensures that the defibrillation is effective while also minimizing risks associated with administering shocks that are too strong for smaller patients.

While separate adult and pediatric pads are a common feature of many AEDs, the key or switch distinctly highlights a specific capability of the device to optimize its use for varying patient demographics. Other features, such as larger display screens or voice prompts, serve important functions but do not specifically address the differentiation in energy levels required for treating adults versus children.