The problem is that after a few years working with these kids, people become so cynical and jaded. A kid starts crying about being "sick", so instead of taking a child to the ER, the protocol is to wait and see what happens, because these kids are often used to manipulation as a way of life.
The problem is that the workers are NOT medical professionals, but they are making medical decisions.
Same as a child who runs, I will almost throw this out there...that she left, in the cold, and cynically, the staff said, "She will come back when she is cold enough.". Because workers get tired of the constant drama. I bet she was gone twice as long as reported. And I would also carefully interview each of the workers again, alone, and see who blames who, and who cracks first. There may be more to this situation...
If the child is outside, the outcome won't be positive here...