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Vitamin B12

Methodology

Utilizes a competitive binding immunoenzymatic assay

Test Utility

Used for the quantitative determination of vitamin B12 levels in human serum and plasma. Vitamin B12 is important in normal cell growth and DNA synthesis. Deficiencies in vitamin B12 can disrupt metabolic pathways and can lead to medical problems such as megaloblastic anemia and neurological problems.

Specimen Collection and Preparation

Serum or plasma sample in the following tubes:

  • Serum separator tube (gold or tiger top)

  • Lithium heparin (green top)

Specimen Storage and Stability

Store serum or plasma at the following temperatures:

  • Room temperature: 15°C to 30°C no longer than 8 hours

  • Refrigerated: 2°C to 8°C up to 24 hours

  • Frozen: -20°C or lower up to 7 days

Specimen Rejection

  • Broken or leaking tube

  • Insufficient sample volume

  • Frozen whole blood

  • Specimen hemolyzed

  • Specimen labeled incorrectly or not labeled

Reference Pages

Performed

Monday – Sunday, 16 hours a day 

Result available within 24 hours of receipt in laboratory 

NOTE: Specimens are refrigerated (2-8°) for 7 days before disposal

Contacts

Vibra Health Laboratory 

1307- A, Allen Dr Troy, MI 48083 

(248) 846-0663

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