Which action should follow immobilizing the affected area in DCS treatment?

In the context of treating decompression sickness (DCS), immobilizing the affected area is a critical first step, as it helps to reduce movement and alleviate further tissue injury. Following this initial action, it is essential that the next step is to land as soon as practical.

Landing promptly allows for immediate access to more advanced medical care and the ability to initiate recompression therapy, which is a definitive treatment for DCS. Time is of the essence in these cases since the longer the treatment is delayed, the more severe the potential complications can become. Quick access to medical personnel increases the chances of a better outcome for the affected individual.

While determining elevation, administering pain relief, and monitoring vital signs are all important considerations in overall treatment, they should occur after securing the safety of the aircraft and landing. Thus, landing as soon as practical is the most critical subsequent action following the immobilization of the affected area in the case of DCS.