What is the purpose of using a tourniquet in traumatic bleeding?

Using a tourniquet in cases of traumatic bleeding is specifically intended to control severe arterial bleeding. When a major artery is compromised, such as during a traumatic injury, blood can rapidly exsanguinate, leading to shock or even death. A tourniquet, when applied correctly above the site of injury, exerts direct pressure on the blood vessels, effectively occluding the artery and preventing further blood loss.

The purpose of a tourniquet is not to enhance blood circulation, relieve pressure on the wound, or improve wound healing; rather, it is a lifesaving measure implemented to manage acute and life-threatening hemorrhages. The application of a tourniquet halts blood flow and allows time for further medical intervention, which is critical in emergencies. Proper training in the use of tourniquets is essential, as improper application or use of a tourniquet in situations of minor bleeding can lead to complications.