In almost every medical course I teach, I always tell the participants, you just never know when you might become the provider. It could be at dinner, shopping or like this girl when at work outside of her medical training. If you are trained in anything from Stop the Bleed to paramedicine, you should have at least a small kit, gloves at a minimum, maybe even a CPR mask, but if you have access to a tourniquet either commercial or improvised and some gauze, you can do a lot. Be safe but be ready
Off-duty EMT, nursing student treat shooting victims in S.C. mall