Medical Tourniquets used to stop blood flow bycontrolling venous and arterial circulation to an extremity for a period of time. The tourniquet applies pressure to the walls of vessels, causing them to become temporarily blocked. Tourniquets are widely used in hospitals when starting an iv or to control bleeding during trauma.
How to Apply a Tourniquet
The proper way on how on to apply a tourniquet. About 6" (15 cm) above the intended puncture site to dilate the vein. Check for a radial pulse. If it isn't present, release the tourniquet and reapply it with less tension to prevent arterial occlusion. Lightly palpate the vein with the index and middle fingers of your non-dominant hand. Stretch the skin to anchor the vein. If the vein feels hard or rope-like, select another.