My only advice is to do everything fast. Have everything ready ahead of time and plan it.
When you give her medication, have an extra syringe of plain water. You can add it to the meds, but you have to realize that there is a approximately .04mls of dead space in the syringe at the tip and you have to take that into consideration if you are adding water to the meds. It's simple calculations but I don't know how comfortable you are with calculating things like that. I don't think I would feed her fruit or veggies. They aren't really an omnivore and vegetable matter is hard on their gut at the best of times.
I would give her something like hornworms or silkworms, but you probably don't have them on hand. If you are anywhere near San Antonio, I could meet you somewhere with some silkworms for her.
Some reptile store might have hornworms, but with the gass shortage, you certainly don't want to be driving around needlessly.