What does a yellow tab on an AED indicate?

A yellow tab on an Automated External Defibrillator (AED) typically indicates that pads are missing or not properly connected. This is a crucial alert for the user, as the pads are essential for delivering a shock to a patient experiencing a cardiac arrest. The presence of a yellow tab serves as a visual reminder to check that all necessary components are in place to ensure the device is ready for use.

If the correct answer were different, it might suggest the device is fully operational or functioning well, but the specific signaling of a yellow tab highlights that immediate attention is required to prepare the AED for its intended life-saving purpose. This emphasizes the importance of having all components readily accessible and functional in an emergency situation, as even a small detail like missing pads could mean the difference between life and death.