Oh that poor baby - they didn't know why her fever is so high ? Could she have an infection ? You must be so worried and with the weekend coming - have an emergency number and location picked out just in case.....
I don't want to scare you - I just remember my Chanel being sick on a weekend and it can be scary unless you have a place you know you can get to in a hurry if necessary.
I would try to give her plenty of WATER...Syringe feed her if you have to - Pedialite for babies is good to give her also - all stores sell it....you don't want her dehydrating -
did the vet say what to feed her ? Maybe ask them if you can give her a little boiled Chicken and Rice ? I would try that if she isn't eating - but ASK the vet first to double check
Bless her heart - I hope she feels better soon !!! Good Luck