Lab comparison
Folate (Folic 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 | 466 | 002014 | 0090-1 |
| Primary tube | Serum separator tube (SST) | Gel-barrier tube (preferred) or red-top tube | SST Tube |
| Specimen type | 1 mL serum | Serum | 1 mL SST Tube |
| Patient prep | Patients should be cautioned to stop biotin consumption at least 72 hours prior to the collection of a sample. | Patients should be cautioned to stop biotin consumption at least 72 hours prior to the collection of a sample. | Patients should be cautioned to stop biotin consumption at least 72 hours prior to the collection of a sample. |
| Minimum volume | Minimum Volume 0.5 mL | Minimum Volume 0.7 mL (Note: This volume does not allow for repeat testing.) | Qty 1 |
Frequently asked questions
What is the Quest Diagnostics order code for Folate (Folic Acid)?
The Quest Diagnostics order code for Folate (Folic Acid) is 466.
What tube color does LabCorp use for Folate (Folic Acid)?
LabCorp uses a Gel-barrier tube (preferred) or red-top tube for Folate (Folic Acid).
Does Folate (Folic Acid) require fasting?
Folate (Folic Acid) patient prep: Patients should be cautioned to stop biotin consumption at least 72 hours prior to the collection of a sample.. 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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