When I successfully completed basic first aid in Boot Camp ( and not all did), and later in an advanced course for Motor lifeboat Coxswains, two things were repeated upon completion. A. The maxim "DO NO HARM" and B. As members of the Coast Guard we were legally obligated to render any and all assistance to any and all emergency services to any and all victims at all times. There were times when the best course of care was a requested helicopter medivac.