I work for a private ambulance company in rural northern NM. I asked that exact same ? when I went for my interview! I was then informed that as a general rule of thumb that any pt found unconscious/unresponsive... Narcan is our friend! This areas number 1 type of call is ODs... That and seem to run on lots of codes... Apparently up north they do not believe in DNRs! Haha kinda morbid humor I guess...