This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
[{'content': 'False positive urinary D-xylose test is seen in: \nSelect and explain. \nA. Ascites, B. Blind loop syndrome, C. Celiac disease, D. Eosinophilic gastroenteritis', 'role': 'user'}, {'content': "Answer: A \nExplanation: An abnormal test (<4.5 g excretion) indicates the presence of duodenal/jejunal mucosal disease. Like celiac disease, crohn's 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.", 'role': 'assistant'}]