What action should be taken first during a crush injury?

In the context of a crush injury, administering high-flow oxygen is a critical first step because individuals with such injuries are at a high risk for hypoxia due to compromised blood flow and potential respiratory distress. Crush injuries can result in muscle damage and the release of toxins, which can lead to complications such as acidosis and impaired oxygen delivery to tissues. By ensuring that the patient receives high-flow oxygen, you can help improve their oxygen saturation levels, support cellular metabolism, and mitigate the risks of hypoxemia.

While controlling bleeding and assessing for fractures are also important aspects of managing crush injuries, the priority in this scenario is to address the potential for oxygen deprivation. Starting CPR may be necessary if the patient is not breathing or has no pulse, but that step comes after ensuring the airway is secure and providing immediate oxygen support if needed.