Vitamin B2 (Riboflavin), Plasma
Test Summary
Vitamin B2 is involved in metabolism of fats, carbohydrates, and protein. The clinical manifestations of deficiency are non-specific. Clinical manifestations include mucocutaneous lesions of the mouth and skin, corneal vascularization, anemia, and personality changes.
Aliases
- N/A
Specimen Collection
Special Instructions
N/A
Preferred Specimen
2 mL frozen plasma collected in an EDTA (lavender-top) tube - protect from light. Specimen cannot be used for multiple tests. If other vitamin tests are ordered, draw tubes for each vitamin requested.
Minimum Volume
0.5 mL
Instructions
See Vitamin Collection Link
Patient Preparation
Overnight fasting is required. Avoidance of vitamin supplements for 24 hours prior to collection is preferred.
Storage
N/A
Transport Temperature
Frozen
Specimen Stability
- Room temperature: Unacceptable
- Refrigerated: Unacceptable
- Frozen: 30 days
Limitations
N/A
Other Acceptable Specimens
Frozen plasma collected in a light protected EDTA (lavender-top) tube
Unacceptable Specimens
Serum separator tube
Order Code
VITB2
EPIC (Premier) Code
LAB3847
Includes
N/A
CPT Code
- 84252
Billing Code
- 670754
CPT Statement
Methodology
Chromatography/Mass Spectrometry
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. The FDA has determined that such clearance or approval is not necessary. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.
Physician Attestation of Informed Consent
N/A
Testing Laboratory
Quest Diagnostics Nichols Institute Valencia
27027 Tourney Road
Valencia CA, 91355
27027 Tourney Road
Valencia CA, 91355
Department
Reference Testing
Reference Range
6.2-39.0 nmol/L
Setup Schedule / Expected Turnaround Time
Tuesday - Saturday; Report available: 3 - 4 days
Resources
Specimen Collection
Special Instructions
N/A
Preferred Specimen
2 mL frozen plasma collected in an EDTA (lavender-top) tube - protect from light. Specimen cannot be used for multiple tests. If other vitamin tests are ordered, draw tubes for each vitamin requested.
Minimum Volume
0.5 mL
Instructions
See Vitamin Collection Link
Patient Preparation
Overnight fasting is required. Avoidance of vitamin supplements for 24 hours prior to collection is preferred.
Storage
N/A
Transport Temperature
Frozen
Specimen Stability
- Room temperature: Unacceptable
- Refrigerated: Unacceptable
- Frozen: 30 days
Limitations
N/A
Other Acceptable Specimens
Frozen plasma collected in a light protected EDTA (lavender-top) tube
Unacceptable Specimens
Serum separator tube
Result Information
Methodology
Chromatography/Mass Spectrometry
Testing Laboratory
N/A
Reference Range
6.2-39.0 nmol/L
Setup Schedule / Expected Turnaround Time
Tuesday - Saturday; Report available: 3 - 4 days