label: Abnormal urine D-xylose test
label_lc: abnormal urine d-xylose test
description: "An abnormal result of the xylose absorption test that is used to assess the ability of the intestines to absorb D-xylose. D-xylose is a five-carbon monosaccharide found in some plants. The patient drinks a solution containing a specific amount of D-xylose and the concentration of xylose is measured in the blood circulation and then in the urine. A low amount of D-xylose indicates reduced small intestinal absorbtion."