What a scare and I would have been freaking out too if I was holding a limp dog and no one would act - But you acted quickly and really saved her life....Maybe the doctors did the work - but you got her right in where she needed to be....
I'm so glad she's ok and hope she doesn't have any more episodes...
and FIVE HUNDRED DOLLARS ?? holy cow - my Emergency Vet asks for 200 up front...it's no wonder so many people put their pets to sleep....

that's very high.