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HUMAN PHENOTYPE - ANNOTATIONS

The Human Phenotype Ontology (HPO) is downloaded weekly from http://compbio.charite.de/hudson/job/hpo/lastStableBuild/artifact/ontology/release/hp.obo. The file downloaded is considered the "last stable build" available for the ontology. For more about the HPO, view their website at http://www.human-phenotype-ontology.org/.

Term:Abnormal urine D-xylose test
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Accession:HP:6001082 term browser browse the term
Definition: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.
Comment:The standard 25-g D-xylose test in adults, based on analysis of a 5-h urine collection and a 1-h serum sample, discriminates between normal subjects and patients with proximal small intestinal malabsorption with X5% specificity and sensitivity.



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  Human phenotype 0
    Phenotypic abnormality 0
      Abnormality of the digestive system 0
        Abnormality of digestive system physiology 0
          Functional abnormality of the gastrointestinal tract 0
            Abnormal urine D-xylose test 0
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