Vitamin B12

CPT Code(s):

82607

Methodology:

Chemiluminescent immunometric assay

Performed:

Monday - Friday

Reported:

Within 3 days

Use:

This test aids in detection of vitamin B12 deficiency in individuals with macrocytic/unexplained anemia, or unexplained neurologic disease.

Specimen Requirements:

Collect blood by venipuncture into an SST/gold-top tube or alternatively a light-green/lithium heparin tube.

For serum, allow the specimens to clot at room temperature. Separate the serum/plasma from the cells, using a refrigerated centrifuge and avoid hemolysis. If possible, keep specimens cold (2 - 8°C).

Stability (collection to time of analysis/testing):

  • Refrigerated (2 - 8°C): 8 hours
  • Frozen (-20°C): 2 months

Collection Procedure:

-

Reference Values:

193 - 982 pg/mL

Interpretation Data:

-

Notes:

-

Reported Notes:

-

Result:

-