If the injury is so severe that these methods aren't stemming the flow of blood, it's time to consider using a tourniquet. The victim might lose the body part due to lack of circulation, so this is a last resort to save a life at the expense of a limb. Select a strong, broad, flexible object, such as a rolled-up shirt, thick cord, rope, or belt. It should not be so thin as to cut into tissue and cause further injury or bleeding. Wrap the tourniquet around the limb as close to the injury as possible, and tie it off as tightly as you can. Alternatively, you can tie the tourniquet around the limb in a loose loop, then tie a handle such as a short, strong stick inside the knot of the loop. Turn the handle several times to twist and tighten. Whatever method you use, you should secure the tourniquet so that it does not come unwound. If possible, dress and bandage the wound, mark the time the tourniquet was applied so that you can later inform the professionals, then get the victim to medical care as soon as possible. Think of your role here more as plumber than doctor—squeeze off the pipes to stop the flow.