Methylmalonic Acid

Test Code
34879

CPT Codes
83921

Preferred Specimen
2 mL serum

Minimum Volume
1 mL

Other Acceptable Specimens
Serum collected in: No additive (royal blue-top) tube • Plasma collected in: Sodium heparin (green-top) or sodium heparin (royal-blue-top) tube

Transport Container
Plastic screw-cap vial

Transport Temperature
Room temperature

Specimen Stability
Room temperature: 4 days
Refrigerated: 7 days
Frozen: 10 months

Methodology
Mass Spectrometry (MS)

FDA Status
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by the U.S. Food and Drug Administration. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.

Setup Schedule
Set up: Mon-Sat a.m.; Report available: 2 days

Reference Range
87-318 nmol/L

Clinical Significance
Test is useful in the determination of certain genetic disorders and Vitamin B12 deficiency.

Performing Laboratory
Quest Diagnostics Nichols Institute
14225 Newbrook Drive
Chantilly, VA 20153




The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.