My vet sent my dog's bloodwork to Antech Diagnostics in NY. The reference range for the Pre meal is < 10.0 umol/L and the Post meal is < 20.0 umol/L. Then in the comments section it states: If either result exceeds 25 umol/L, abnormal liver function should be considered. Elevated postprandial bile acids are supportive of hepatobiliary disease. The majority of animals with congenital or acquired portosystemic shunting have markedly increased postprandial values (>100 umol/L) |