Wow! 200 gram rat? This isnt a ball python by any chance that your feeding is it?

Anyways, water is the most vital thing for her at this moment. Read Becki's rodent mix, it consists of cereal, dried fruits (no citrus) and a few nuts and oats. If you have any dog food, that should suffice for a few days. She does sound like a dumbo with the side ears.

Again, I hope you just mis calculated her weight or I misunderstood what animal your feeding her.