this usually creeps up in dogs with ibd - has your dog had intestinal issues for whole life?
Intestinal Lymphangiectasia Lymphangiectasia
epi comes up in dogs with pancreatitis over and over
Exocrine Pancreatic Insufficiency in Dogs (EPI)
and ple comes out of no where usually
Protein Losing Enteropathy in Dogs (PLE)
due to age 3 is a little old to be liver related as you would have seen symptoms usually by that age but here is info for that
Portosystemic Shunt (Hepatic Shunt) in Dogs
liver shunt is low protein diet but ple is high protein so need to know more with blood work and time is of the essence with this little one as if it is ple it is very serious
Holistic Veterinarian Pet Nutritionist Holistic Pet Care is a nutritionist for dogs and she will review blood work and do consult - many with ple and epi consult with her for diets on here