Where should a tourniquet be placed on a limb?

A tourniquet is a vital tool used to control severe bleeding from a limb, and its placement is crucial for effectiveness. The correct placement is two to four inches above the wound, between the wound and the heart. This positioning allows the tourniquet to effectively compress the blood vessels and minimize blood flow to the injured area, which is essential when dealing with life-threatening hemorrhages. By positioning it above the wound, the tourniquet can cut off arterial blood flow to the injury, thereby reducing the risk of significant blood loss and increasing the likelihood of survival until advanced medical help is available.

The other options highlight common misconceptions about tourniquet placement. Placing a tourniquet directly on the wound can lead to further damage to the tissue and may not effectively stop the bleeding. Positioning it on the wrist for arm injuries lacks the necessary elevation that is crucial for proper blood flow control. Finally, placing a tourniquet on a joint may not create sufficient pressure to occlude blood flow, and it could cause further complications. Thus, understanding the appropriate placement of a tourniquet is critical for effective emergency response in traumatic situations.