THE oral dextrose tolerance test has been employed as the conventional estimation of carbohydrate absorption. Usually, in celiac disease and nontropical sprue the blood tolerance curves are flat or ...

The d-xylose absorption test is useful in the diagnosis of tropical and idiopathic sprue, 1–4 but results are variable in other disorders and in elderly persons without intestinal disease. 5,6 ...

A Schilling test is also known as a Vitamin B12 absorption test. It was formerly used to determine whether a person was absorbing vitamin B12 normally. If not, then the test could pinpoint the cause ...