<prompt> Schillings test is false ve in PGI June 2008Celiac sprueRenal insufficiencyShort bowel syndromeDiverticulosis  <response>: Ans. B Renal insufficiency D-Xylose TestPositive TestDecreased D-Xylose excretion in urine due to malabsorption from gastrointestinal mucosal diseaseCauses IncludeCeliac diseaseTropical sprueWhipples diseaseAnother mucosal diseaseFalse Positive TestDecreased D-Xylose excretion in urine due to causes other than malabsorption from small bowel mucosal diseaseCauses Include Bacterial overgrowth Renal insufficiency Delay gastric emptying Rapid intestinal transit Vomiting Ascites Pleural effusion Third space collections o causes other than malabsorption from small bowel mucosal diseaseTable Harrison : Results of Diagnostic Studies in Different Causes of Steatorrhoea. D-XyloseTestSchilling TestDuodenalMucosalBiopsyChronic pancreatitisnormal50 abnormal; if abnormal, normal with pancreatic enzymes1NormalQBacterial overgrowth syndromeNormal or only modestly abnormalQOften abnormal; if abnormal, normal after antibioticsUsuallynormalIleal diseasenormalAbnormal5NormalCeliac sprueDecreasedNormalAbnormal: probably flatQIntestinal lymphangiectasiaNormalNormalAbnormal:dilatedlymphaticsSchilling Test Resultsnormal.Patient ConditionStage I WaterStage II Intrinsic FactorStage III AntibioticStage IV Pancreatic ExtractHealthynormal.mmPerniciousanemiaLowNormaQ- Bacterial overgrowthLowLowNormal-Pancreatic insufficiencyQ LowLowLowQNormalDefect in ileumQLowLowLowLow 