Methylmalonic Acid, Serum

CPT Code(s):

83921

Additional Information:

Epic order code: LAB835

Methodology:

Liquid chromatography/tandem mass spectrometry (LC/MS-MS)

Performed:

As needed

Reported:

3-6 days

Use:

Evaluation of cobalamin (vitamin B12) deficiency

Specimen Requirements:

Collect 3 mL blood in a gel barrier tube. .
Transport/Storage Temperature
  • Refrigerated
Stability (collection to shipping of the sample):
  • Refrigerated: 14 days.

Reference Values:

0−378 nmol/L