What is a critical step in the treatment of Arterial Gas Embolism?

Administering 100% oxygen by mask is a critical step in the treatment of Arterial Gas Embolism (AGE). This approach is essential because oxygen helps to reduce the size of nitrogen bubbles in the bloodstream by promoting their reabsorption and enhancing the elimination of carbon dioxide. High concentrations of oxygen increase the amount of oxygen dissolved in the plasma, which can be critical for preventing tissue hypoxia while the body works to absorb the gas bubbles.

In treatment protocols for AGE, providing 100% oxygen is crucial because it diminishes the risk of hypoxia in tissues and aids in the mobilization and resorption of the emboli. Additionally, hyperbaric oxygen therapy is often utilized in more severe cases, but the immediate administration of 100% oxygen while preparing for transport is a fundamental first step.

The other choices, while potentially relevant in other contexts of treating diving-related injuries, do not directly address the immediate and essential need to mitigate the effects of the gas embolism. For instance, administering intravenous fluids has its place in maintaining circulation and supporting blood pressure, but it doesn't specifically target the gas emboli. Applying pressure to an injury site may be useful for other types of injuries but is inappropriate in the context of AGE, as