I would be out the door of that vet's office if they were not concerned with elevated BATs!!! Further testing IS in order, but I would seek out the opinion of a specialist at this point if your vet is not concerned.
You can find an internal med specialist at
American College of Veterinary Internal Medicine > Home
As for the vomiting, if it is severe, she could end up dehydrated before tomorrow. Is she eating today and keeping it down? You can check her hydration status by lifting her lip and making sure her gums are wet to touch. If they are sticky and dry, she needs to see a vet today!!
Here is a link that is really great for owners of pups with liver disease:
https://vetmed.tennessee.edu/vmc2/Do...D-Brochure.pdf