<prompt> False positive urinary D-xylose test is seen in:AscitesBlind loop syndromeCeliac diseaseEosinophilic gastroenteritis  <response>: An abnormal test 4.5 g excretion indicates the presence of duodenaljejunal mucosal disease. Like celiac disease, crohns disease, Eosinophilic gastroenteritis and small intestinal lymphoma. The D-xylose test can also be abnormal in blind loop syndrome. False-positive study is seen in patients with ascites and pleural effusion. Ref: Harrison, E-18, P-2467. 