D-xylose Absorption Test

Xylose Tolerance Test

What Affects the Test

Factors that can interfere with your test or the accuracy of the results include:

• Large amounts of bacteria in the intestines.
• Kidney disease or bladder problems that prevent you from completely emptying your bladder.
• Medicines, such as antibiotics, aspirin, and heart medicines. Many medicines can affect D-xylose test results.
• Physical activity during the test. You will be instructed to rest quietly until the test is complete.
• Conditions that cause food to remain in the stomach for a long time.

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Author:	Ralph Poore	Last Updated: April 30, 2007
Medical Review:	Anne C. Poinier, MD - Internal Medicine Peter J. Kahrilas, MD - Gastroenterology
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