Not sure why he said that about legalities. If he felt it should be done, why not just do it? Confusing to me. Honestly, I always expect them to do labs, especially in a case like this. If she needed fluids, it would be helpful to know what her lab values are.
Yes, if she has any episodes of vomiting and/or diarrhea I would take her in immediately.
Hopefully, this is going to pass. I hope she is better by morning!
