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 ...

THE purpose of this paper is to report values for the so-called xylose tolerance test in a group of healthy infants and children at different ages. We have chosen to designate this test the oral ...

A team of researchers from St. John’s Research Institute (SJRI) has developed a new test to measure vitamin B12 absorption in humans with stable 13C isotopes. Earlier, this was possible only using the ...