What first aid action is excluded in the treatment for arterial gas embolism?

In the context of treating arterial gas embolism, recompression is a specific medical intervention typically performed in a hyperbaric chamber. This treatment increases the pressure surrounding the patient, which helps reduce the size of gas bubbles in the bloodstream and promotes the reabsorption of gas into the tissue, but it is often only available in specialized medical settings.

The other actions mentioned, such as oxygen therapy, administration of fluids, and appropriate positioning of the patient, are generally recommended in managing arterial gas embolism outside of a hyperbaric environment. Oxygen therapy helps to reduce hypoxia and assists in the elimination of dissolved gas from the bloodstream. Administering fluids can help to maintain blood pressure and improve circulation, while positioning the patient appropriately can enhance venous return and minimize complications from the gas bubbles.

Therefore, while recompression is an effective treatment for arterial gas embolism, it is not applicable in every first aid scenario, making it the action that is excluded from initial first aid management for this condition.