What treatment method is NOT used to control external bleeding?

The treatment method that is not specifically used to control external bleeding is the application of a splint. Splints are primarily used to immobilize fractures or dislocations to prevent further injury and to ease pain. While immobilization can assist in managing an injury related to bleeding, the primary objective of splinting is not directly to control blood flow, which is crucial immediately after a traumatic injury.

On the other hand, techniques such as direct pressure, limb elevation, and the application of a tourniquet are standardized methods taught to manage external bleeding. Direct pressure is one of the most effective and immediate ways to control bleeding by applying firm pressure over the wound. Elevation of a limb helps reduce blood flow to the area, thereby minimizing blood loss. A tourniquet is a last resort emergency measure that can completely stop blood flow to a limb in severe bleeding situations.