The back pressure-arm lift method, because during a chemical or biological attack both of you will be masked. When a doctor tells you to stop. When you are relieved by others. When you cannot physically continue. When the casualty starts to breathe on his own.
Blood is dark red and flows in a steady stream.
Blood oozes from the wound. Apply a field dressing. Apply manual pressure. Elevate the injured limb. Apply a pressure dressing.