What is the appropriate method for applying a tourniquet?

The appropriate method for applying a tourniquet is to place it above the injury site and tighten it until the bleeding stops. This technique is critical because placing the tourniquet above the wound allows it to effectively occlude the arterial blood flow to the injured area, controlling severe hemorrhage. Tightening the tourniquet until the bleeding ceases ensures that sufficient pressure is applied to achieve hemostasis, which is vital in preventing significant blood loss and potential shock.

Using a tourniquet directly over the wound site may not effectively control the bleeding, as the blood vessels could still be supplying blood to the injury. Applying it below the injury site would be ineffective since it would allow continued bleeding from the wounded area. Lastly, applying the tourniquet loosely would not achieve the necessary pressure to stop bleeding and could potentially worsen the situation by giving more time for blood loss, which is counterproductive in emergency care situations. Thus, option B correctly adheres to trauma management protocols in cases of severe limb bleeding.