Which statement best describes a Schilling test? A) Administration of radioactive cobalamin and the measurement of its excretion in the urine to test for vitamin B₁₂ deficiency B) Measurement of antigen-antibody immune complexes in the blood to test for hemolytic anemia C) Measurement of serum ferritin and total iron-binding capacity in the blood to test for iron deficiency anemia D) Administration of folate and measurement in 2 hours of its level in a blood sample to test for folic acid deficiency anemia.

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The Schilling test indirectly evaluates vitamin B₁₂ absorption by administering radioactive B₁₂ and measuring excretion in the urine.This selection is the only option that accurately describes a Schilling test.

Which Statement Best Describes a Schilling Test