J. M. FINLAY, M.D., F.R.C.P.(C); K. J. R. WIGHTMAN, M.D., F.R.C.P.(C), F.A.C.P.
Metabolic balance studies and the more recent radioactive isotopic tracer technics provide reasonably accurate methods for measuring the intestinal absorption of fat,1, 2, 3, 4 nitrogenous materials,1, 2 water5, 6 and electrolytes.2, 7, 8, 9, 10, 11, 12, 13 However, the available methods for the measurement of carbohydrate absorption have certain disadvantages. For example, the oral glucose tolerance test has been criticized because the blood levels obtained reflect many metabolic processes and not simply intestinal absorption.38 In the second method, in which carbohydrate absorption is measured directly, the small bowel is intubated during repeated fluoroscopic examinations and its lumen is
FINLAY JM, WIGHTMAN KJR. THE XYLOSE TOLERANCE TEST AS A MEASURE OF THE INTESTINAL ABSORPTION OF CARBOHYDRATE IN SPRUE12. Ann Intern Med. ;49:1332–1347. doi: 10.7326/0003-4819-49-6-1332
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Published: Ann Intern Med. 1958;49(6):1332-1347.
Celiac Disease and Malabsorption, Gastroenterology/Hepatology.
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