Originally Posted by
CritterMom
I would just try to get even tiny amounts of food into her, along with hydration - maybe some water with honey in it. At this point, being emaciated, nothing will be working correctly so she needs to get some nutrition into her before you can really tell what is going on. But go slow - you don't want refeeding syndrom.
Once you heat the formula, add a little blob of peanut butter to it and stir it until the peanut butter melts and mixes with the formula. Rewarm if needed and try that - the peanut butter is so strongly scented it sometimes triggers them.