2. Field dressing
Without proper dressings, a heavily bleeding wound can be game over when you are far from medical care. Hopefully you have a clean sock to spare, but a dirty one is better than none. Grab a sock, fold it over several times, hold it in place over the wound, and apply pressure. You could even tie a second elastic sock around the improvised bandage as a compression dressing. Elevate the injury if possdible, and keep the dressing in place until the bleeding subsides.