The Schilling test is performed to evaluate vitamin B12 absorption.
B12 helps in the formation of red blood cells, the maintenance of
the central nervous system, and is important for metabolism.
Normally, ingested vitamin B12 combines with intrinsic factor,
which is produced by cells in the stomach. Intrinsic factor is
necessary for vitamin B12 to be absorbed in the small intestine.
Certain diseases, such as pernicious anemia, can result when
absorption of vitamin B12 is inadequate.
Review Date: 03/21/2010
Reviewed By: Linda J. Vorvick, MD, Medical Director, MEDEX Northwest Division of
Physician Assistant Studies, University of Washington, School of
Medicine; James R. Mason, MD, Oncologist, Director, Blood and
Marrow Transplantation Program and Stem Cell Processing Lab,
Scripps Clinic, Torrey Pines, California. Also reviewed by David
Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.
A.D.A.M., Inc. is accredited by URAC, also known as the American Accreditation HealthCare Commission (www.urac.org)
