Which of the following is the correct first step in treating an open soft tissue injury?

The first step in treating an open soft tissue injury is to apply direct pressure to control bleeding, making it the correct choice. When a soft tissue injury occurs, there is often bleeding, and controlling that bleeding is crucial to prevent further complications, including shock or excessive blood loss. Applying direct pressure helps to constrict blood vessels and reduces the flow of blood from the wound, allowing it to stabilize before further treatment is provided.

Following this initial step, other actions such as immobilization and elevation can be taken, but they are secondary to controlling bleeding. While a tourniquet can be a life-saving measure in cases of severe extremity bleeding, it should only be used if direct pressure fails to stop the bleeding or if there is a life-threatening hemorrhage that requires immediate intervention. In many cases, applying direct pressure effectively manages the situation without the need for a tourniquet.

Leaving fingers and toes exposed is not appropriate in the context of treating an open soft tissue injury. While exposed digits can facilitate monitoring for color and circulation, the priority should always be to control any bleeding first. Therefore, direct pressure is the foundational step that should guide the treatment of open soft tissue injuries.