Medical Definition of Vitamin B12 absorption test

1. This test measures the amount of vitamin B12 in the urine after ingesting a dose of B12. This test evaluates vitamin B12 absorption. The cells in the stomach produce a substance known as intrinsic factor. This substance combines with B12 to allow absorption in the distal ileum. The patient is given a small dose of radioactive B12 which can then be detected in the patients urine. Pernicious anaemia is the clinical result of B12 deficiency. Conditions that can result in an abnormal Schilling test include: deficiency of intrinsic factor, malabsorption or the development of an antibody to intrinsic factor. The Schilling test can be performed with or without administration of intrinsic factor to determine what the underlying cause for pernicious anaemia. Laxative use, renal insufficiency and hypothyroidism can all interfere with the results of this test. (27 Sep 1997)

Lexicographical Neighbors of Vitamin B12 Absorption Test

vitamers
vitamin
vitamin-deficiency diet
vitamin A
vitamin A1
vitamin A1 acid
vitamin A1 alcohol
vitamin A2
vitamin A2 aldehyde
vitamin A acid
vitamin A aldehyde
vitamin A unit
vitamin B
vitamin B1
vitamin B12
vitamin B12 absorption test (current term)
vitamin B12 deficiency
vitamin B12 neuropathy
vitamin B12 with intrinsic factor concentrate
vitamin B17
vitamin B1 hydrochloride unit
vitamin B2
vitamin B2 unit
vitamin B3
vitamin B4
vitamin B5
vitamin B6
vitamin B6 deficiency
vitamin B6 unit
vitamin B7

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