Lab comparison
Methylmalonic Acid: Quest vs LabCorp vs BioReference, tube, code & requirements
. This page shows collection requirements for all three major reference labs in one view, so you don’t have to cross-check three portals.
Always verify against your lab’s current collection manual before drawing.
Every value on this page is verified by a nurse practitioner in active clinical practice, not scraped from an automated source.
| Requirement | Quest Diagnostics | LabCorp | BioReference |
|---|---|---|---|
| Test code | 34879 | 706961 | 0349-1 |
| Primary tube | Serum separator tube (SST) | Red-top tube, gel-barrier tube, or green-top (heparin) tube | SST Tube |
| Specimen type | 2 mL serum | Serum or plasma | 2 mL SST Tube |
| Patient prep | None Specified | None Specified | None Specified |
| Minimum volume | Minimum volume 1 mL | Minimum Volume 0.6 mL (Note: This volume does not allow for repeat testing.) | Qty 1 |
Frequently asked questions
What is the Quest Diagnostics order code for Methylmalonic Acid?
The Quest Diagnostics order code for Methylmalonic Acid is 34879.
What tube color does LabCorp use for Methylmalonic Acid?
LabCorp uses a Red-top tube, gel-barrier tube, or green-top (heparin) tube for Methylmalonic Acid.
Does Methylmalonic Acid require fasting?
Methylmalonic Acid patient prep: None Specified. Always confirm with the ordering lab before the draw.
Data provenance
Source: Quest Diagnostics specimen collection manual, LabCorp directory of services, and BioReference laboratory collection guide.
Verified by: a licensed nurse practitioner in active clinical practice. Values are reviewed against each lab’s published collection requirements. Always confirm against your lab’s current manual before drawing.
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Related: why lab specimens get rejected, and how to prevent it
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