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Vitamin B12
Test Code927
CPT Codes
82607
Preferred Specimen
1 mL serum
Minimum Volume
0.5 mL
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 7 days
Rrefrigerated: 7 days
Frozen: 28 days
Rrefrigerated: 7 days
Frozen: 28 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Hemolysis
Methodology
Immunoassay (IA)
Setup Schedule
A.M. Sets up 5 days a week.
Clinical Significance
B12 is decreased in pernicious anemia, total or partial gastrectomy, malabsorption and certain congenital and biochemical disorders.