when my youngest was two she fell off a playground set from about 7 feet up while i had my back turned. all i heard was a loud pinging bang and then screaming.
one of the moms came over and said "she slammed her head right on the metal step.. you need to take her to the hospital right now." so speeding off we went.
i ran in to the ER and explained to the receptionist what had happened. she was..... unperturbed. no reaction. just dead eyed indifference. i think her exact words were "it's going to be a while before we see her. there are other higher priorities waiting."
there was one teenager in the waiting area who kept complaining that he felt like throwing up. that was it.
there were expletives expressed, security was called, nurses came out to calm me down. then an hour later a nurse came to see us... an hour. she walked in. took one look at us and said "did she lose consciousness? has she been drowsy or acting differently since she fell? did she throw up? no? then you didn't need to bring her in." and that was that. they cut us loose with a recommendation that we not let her sleep more than a few hours at a time that night.
my oldest smashed the ever living #### out of her head running in to a wood playset a couple years later. took her in, too. same hospital, different nurse. same reaction. they basically said don't waste our time unless there's vomit, blood or loss of consciousness.