What is the most beneficial first action when encountering a victim of an avalanche?

When encountering a victim of an avalanche, the most beneficial first action is to clear the airway. Victims of avalanches can often be buried under snow, which can obstruct their airways and prevent them from breathing. If the airway is not cleared promptly, the victim may suffer from asphyxiation, leading to irreversible damage or death. Therefore, ensuring that the victim can breathe is the priority.

This action directly addresses the immediate emergency of the victim's condition. Once the airway is clear, other necessary actions such as administering first aid, assessing vital signs, or calling for rescue help can follow, as the victim's survival hinges on the ability to breathe first and foremost. Thus, clearing the airway is a critical step in the chain of survival in such situations.