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Test Code BLOD0604 Vitamin B12, Plasma or Serum

Useful For

Investigating the presence and etiology of anemia



Performing Laboratory

Bozeman Health Laboratory Services

Specimen Requirements

Specimen Type: Plasma or serum
Container/Tube: Light-green top (lithium heparin gel), red top, or gold top
Specimen Volume: 1 mL
Specimen Minimum Volume: 0.5 mL

Specimen Transport Temperature

Refrigerated <48 hours/Frozen >48 hours

Specimen Stability


Specimen Type Temperature Time
Plasma or Serum Ambient 24 hours
  Refrigerated 48 hours
  Frozen 1 month


Reference Values

193-986 pg/mL

Day(s) Test Set Up

Monday through Friday

Test Classification and CPT Coding