what were the bile acid tests results pre and post?
medicines can affect the liver so it may not be a liver issue per se
the blood work is indicative of lymphangiecstasia
i would recommend a consult with
Holistic Veterinarian Pet Nutritionist Holistic Pet Care as she helps alot of yorkies with ple which is also a loss of protein
Loss of protein is pretty serious - also pm luvmysissy as she knows alot about this as well as bleuboybarber
What diet are you feeding? If liver issues you never want to feed beef - the problem is with ple i believe you need to feed a high protein diet but with liver disease you need to feed a low protein diet
what breed is your dog? Usually dogs that get lymphangiecstasia have had on going ibd issues - it is usually diagnosed with low protein, low calcium -have you read the other links i have posted on ?