I just read this article in Yahoo. As a school nurse, it definitely caught my interest!
I know it's tough to say, based upon just reading the article instead of actually seeing everything with your own eyes...
I think that if it were me, I would have splinted the arm. Then I'd call the parent to transport the child to ER, and offer to call 911 if they prefer. But for a suspected fractured arm, I doubt I'd think to call 911 first. Naturally, if there was bone poking through skin, I would!
What do you think?