Specimen Requirements

Title

Vitamin B12 Binding Capacity, Unsaturated ***Discontinued***

Specimen Requirement

**** Testing discontinued effective 1/1/2024 ****

Methodology

Stability

Room Temperature or Refrigerated 4 days, Frozen 30 days

Reference Range

By Report*

Turnaround

1 day Setup Tues, Thurs PM

Clinical Use

Differential diagnosis of polycythemia vera from secondary/relative polycythemias; evaluate macrocytic/megaloblastic anemia; diagnose congenital absence of transcobalamin II or cobalophilin (transcobalamin I and III)

Test Code