What is the preferred method to control severe bleeding in the extremities?

The preferred method to control severe bleeding in the extremities is to use a tourniquet above the injury site. This method is crucial in situations where direct pressure or other techniques have failed or are not effective due to the severity of the bleeding. A tourniquet can quickly occlude blood flow to the area, which significantly reduces the chance of life-threatening blood loss.

When applied correctly, a tourniquet can be a lifesaver in cases of traumatic limb injuries from combat or accidents. Ensuring that the tourniquet is positioned above the injury is essential, as placing it directly on or below the wound does not adequately stop the flow of blood. Timing is also critical—tourniquets should be applied as soon as severe bleeding is identified to prevent shock and other complications from blood loss.

In contrast to other options, direct pressure may not be sufficient for severe injuries, hemostatic agents require specific types of injuries and cannot replace the immediate action of a tourniquet, and elevating the injured limb is not effective in severe bleeding situations and may delay necessary intervention. Thus, using a tourniquet above the injury site is the most effective method to control severe extremity bleeding.