Vitamin B2 (Riboflavin)
Test code
CPT code(s)*
Test resources
Please visit our Clinical Education Center to stay informed on any future publications, webinars, or other education opportunities.
Details
Methodology
Chromatography/Mass Spectrometry
Assay category
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by FDA. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.
Alternative name(s)
Riboflavin,B2
Specimen requirements | |
|---|---|
| Patient preparation | Overnight fasting is required. Avoidance of vitamin supplements for 24 hours prior to collection is preferred. |
| Preferred specimen(s) | 1 mL frozen serum collected in a red-top tube (no-gel) - protected from light |
| Alternative specimen(s) | Frozen plasma collected in: EDTA (lavender-top) tube - protected from light |
| Minimum volume | 0.5 mL |
| Collection instructions | Pour serum or plasma into amber transport tube (preferred) or transport tube wrapped in aluminum foil to protect from light. |
| Transport container | Amber transport tube |
| Transport temperature | Frozen |
| Specimen stability | Room temperature: Unacceptable Refrigerated: Unacceptable Frozen: 30 days |
| Reject criteria | Serum separator tube (SST) |
Reference ranges are provided as general guidance only. To interpret test results use the reference range in the laboratory report.
*The CPT codes provided are based on AMA guidance and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.
This material contains content from LOINC® (http://loinc.org). The LOINC Table, LOINC Table Core are copyright © 1995-2019, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee and is available at no cost under the license at http://loinc.org/license.
The tests listed by specialty and category are a select group of tests offered. For a complete list of Quest Diagnostics tests, please adjust the filter options chosen, or refer to our Directory of Services.