What is the immediate treatment protocol for DCS Type 1?

The immediate treatment protocol for Decompression Sickness (DCS) Type 1 prioritizes the administration of 100% oxygen and contacting the Underwater Medical Officer (UMO). This protocol is essential because DCS Type 1, often referred to as "the bends," can result from the formation of nitrogen bubbles in the body due to rapid ascent from a dive.

Administering 100% oxygen helps to reduce the volume of nitrogen bubbles by enhancing the elimination of nitrogen from the body. Oxygen also aids in the reduction of hypoxia in tissues and promotes healing by facilitating aerobic metabolism and antioxidant effects. Additionally, contacting the UMO is crucial, as they can provide medical direction and arrange for further evaluation and treatment, typically involving hyperbaric oxygen therapy.

In contrast, while antihistamines may alleviate allergic reactions, they do not address the underlying issue of DCS. Performing chest compressions is reserved for cardiac emergencies and does not apply to DCS treatment. Transporting a patient to a regular hospital may be necessary, but it is not the immediate step; the priority should be administering oxygen and consulting with a medical professional trained in dive-related injuries. Thus, the combination of oxygen administration and communication with the UMO forms the cornerstone of the