Dxilózteszt

Dxilózteszt is a Hungarian term that translates to "Xylose Test" in English. It refers to a diagnostic test used to assess the absorption capacity of the small intestine. The test involves administering a specific dose of xylose, a pentose sugar, to a patient orally. Xylose is chosen because it is not metabolized by the body and is absorbed intact by the small intestine and excreted in the urine.

Following the administration of xylose, blood and urine samples are collected at timed intervals. The levels of xylose in these samples are then measured. In healthy individuals, xylose is readily absorbed and a significant portion is excreted in the urine within a few hours. Elevated xylose levels in the blood and decreased excretion in the urine can indicate impaired absorption in the small intestine.

Conditions that can lead to malabsorption and thus affect xylose test results include celiac disease, Crohn's disease affecting the small intestine, giardiasis, and bacterial overgrowth. A low urine xylose excretion or prolonged high blood xylose levels can suggest a problem with intestinal absorption. The xylose test is a relatively simple and non-invasive method to evaluate this specific aspect of digestive function. It is often used as an initial screening tool for malabsorption syndromes.