I’d find that nurse and....
You’d find that nurse and do what?
The nurse was correct in making the initial diagnosis of dehydration.
Poor skin turgor,dry mucous membranes,possibly weak cry = get that baby to an emergency room NOW!
The only thing the nurse could have possibly done different instead of relying on a knuckle headed mother,is to have called paramedics.
Further assessment of the child along with blood work etc would be done at an acute care center and not at a clinic.