Knowing how to use a tourniquet is an essential skill to know when someone is bleeding severely from an extremity. Stop The Bleed skills save many lives. Left with a severe femoral bleed, Nickleton's life dangles in the balance. A tourniquet is his last hope. More and more is being understood about tourniquets and their essential role in saving lives. Here today is the EMS instructor, Tim Johnson, to discuss the proper application.