What is the only treatment that can be administered while under effective fire?

The treatment that can be effectively administered while under effective fire is hemorrhage control with a tourniquet. In high-stress and hazardous environments, such as those experienced in combat, rapid intervention is crucial to prevent life-threatening blood loss.

Using a tourniquet is a quick method that allows for the immediate containment of severe bleeding from a limb. This procedure can be performed efficiently even under adverse conditions where attention to other procedures may not be possible or safe. In a scenario where there is a need to remain tactical due to ongoing threats, the application of a tourniquet does not require the same level of time or distraction compared to other treatments that might require more extensive focus or a less mobile position.

In contrast, pain management, wound cleaning, and airway management typically require a more secure and controlled environment to ensure proper technique and effectiveness. These treatments often necessitate a stable position to assess and manage the individual adequately, which could be dangerous if attempted while still under fire.