What is the correct technique for applying a tourniquet in the field?

What is the correct technique for applying a tourniquet in the field?

• A. Place 4 inches above the bleeding site and secure
• B. Place 2-3 inches above the bleeding site, then loosen the strap and examine
• C. Place 2-3 inches above the bleeding site, tighten until bleeding stops, secure the strap, and note the time
• D. Place the tourniquet directly over the wound

Answer: (C)

In field trauma care, stopping life-threatening limb bleeding comes from occluding arterial blood flow with a tourniquet placed correctly. The best technique is to position the tourniquet about 2-3 inches above the wound on the limb, avoiding directly over the wound and not over a joint. This proximity lets the band press on the artery that feeds the injured area, providing effective control of bleeding. Tighten the tourniquet until the bleeding stops and you can confirm there’s no distal bleeding. Then secure the strap and note the exact time of application. Recording the time is crucial because it helps medical teams judge how long the limb has been without normal blood flow and plan subsequent care. Why this distance matters: 2-3 inches above the wound ensures arterial occlusion without relying on tissue directly at the injury site, which improves effectiveness and reduces the chance of rebleeding. Placing the tourniquet too far away (like 4 inches) can reduce control of the bleeding, and placing it directly over the wound won’t reliably compress the underlying artery. Loosening to check the wound interrupts the bleeding control, which is why you keep it tight until definitive care arrives.

In field trauma care, stopping life-threatening limb bleeding comes from occluding arterial blood flow with a tourniquet placed correctly. The best technique is to position the tourniquet about 2-3 inches above the wound on the limb, avoiding directly over the wound and not over a joint. This proximity lets the band press on the artery that feeds the injured area, providing effective control of bleeding.

Tighten the tourniquet until the bleeding stops and you can confirm there’s no distal bleeding. Then secure the strap and note the exact time of application. Recording the time is crucial because it helps medical teams judge how long the limb has been without normal blood flow and plan subsequent care.

Why this distance matters: 2-3 inches above the wound ensures arterial occlusion without relying on tissue directly at the injury site, which improves effectiveness and reduces the chance of rebleeding. Placing the tourniquet too far away (like 4 inches) can reduce control of the bleeding, and placing it directly over the wound won’t reliably compress the underlying artery. Loosening to check the wound interrupts the bleeding control, which is why you keep it tight until definitive care arrives.