This test cannot be used for cats because of insensitivity and wide individual variation in xylose absorption in this species.
Normal dogs - After 1 hour the mean concentration is 63mg/dl +/- 12.
Plasma concentrations above 50mg/dl are normal
Plasma concentrations between 45 and 50 mg/dl are inconclusive, but above 45mg/dl after 90 minutes is normal.
Dogs with malabsorption have plasma xylose concentrations of 13-43 mg/dl after 90 minutes.
Other causes of delayed xylose absorption include:
Last updated : January 2016