What does a flashing green light on the AED signify?

A flashing green light on an Automated External Defibrillator (AED) signifies that the device is operational. This means the AED is ready for use and has passed its self-check or readiness test, ensuring that the device is not only powered on but also functioning properly for potential emergency situations.

In the context of AEDs, operational readiness is crucial because timely and effective defibrillation can significantly improve the chances of survival in cases of cardiac arrest. The device’s indicators, including the flashing green light, help users quickly assess its status without needing to delve into technical details.

In contrast, other indicators such as a steady or flashing red light would signal issues like low battery or that the unit is not ready for use, reinforcing why the flashing green light specifically indicates operational status.