The D-Xylose Absorption Test in Malabsorption Syndromes

Absorção intestinal de D-xilose em crianças infectadas pelo vírus da imunodeficiência humana

“…O teste da D-xilose é atualmente a mais confiável medida quantitativa da função absortiva intestinal, podendo ser utilizado para a avaliação da má absorção do intestino delgado em diversas circunstâncias clínicas (4,7,13,17,19,23) . Trata-se de teste simples e barato que vem sendo utilizado por mais de 40 anos (24) .…”

Laxative Abuse

“…An abnormal xylose toler ance test [68] has been reported following surreptitious laxative abuse [42,44,69], It is a test of limited use in that patients have been known either to dilute their urine or to dispose of it, leading to inadequate collec tions. The Lundh test of pancreatic function may also be deranged [33].…”

On the Laboratory Diagnosis of Absorption

“…Most recently the papers recommending D-xylose [7,8,9,10,11] are of a constantly increasing num ber. As it is well known, xylose belongs to the pentose group and its absorption is similar to th at of the glucose, i.e.…”