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HelpTest Code B12 Vitamin B12 Assay, Serum
Methodology
Electrochemiluminescence
Vitamin B12 is an essential component in the production of DNA. A vitamin B12 deficiency can cause megaloblastic anemia.
Performing Laboratory
St. Clair Hospital Laboratory
Specimen Requirements
Draw venous blood sample in a serum gel (SST) tube OR in
a plain, red-top tube(s). Spin down and send 1 mL of
serum. Centrifuge blood as soon as possible, or send unspun blood
to laboratory within 4 hours of draw.
Note: If #FOLATE “Folate,
Serum” is also ordered, avoid hemolysis.
Reference Values
130-770 pg/mL
Day(s) Test Set Up
Monday through Sunday