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
Cause of False positive D-xylose test include all of the following, Except 
Select and explain. 
A. Bacterial overgrowth, B. Renal failure, C. Ascitis, D. Celiac sprue
D: Celiac sprue
Answer: D: Celiac sprue 
Explanation: Answer is D (Celiac sprue) Celiac sprue is associated with a positive D- xylose and not a False positive Dxylose test. D-xylose Test Positive test ecreased (4) D- Xylose excretion in urine due to malabsorption from gastrointestinal mucosal disease Causes Include Celiac disease Tropical sprue Whipple's disease Other mucosal diseases