Vitamin B 2 (Riboflavin), Plasma

Test Code

VTB2P

CPT Codes
<p>84252</p>

Preferred Specimen

Patient Preparation: Overnight fasting is required. Avoidance of vitamin supplements for 24 hours prior to collection is preferred.

Specimen Type: Plasma EDTA

Collection Container/Type: Lavender top (EDTA)

Submission Container/Tube: Amber vial

Specimen Volume: 2 mL

Collection Instructions:

Centrifuge and aliquot plasma into amber vial.

Additional Information:

Protect from light

Patient Preparation
Overnight fasting is required. Avoidance of vitamin supplements for 24 hours prior to collection is preferred.

Minimum Volume

0.5 mL

Other Acceptable Specimens

Frozen plasma collected in a light protected EDTA (lavender-top) tube

Instructions

Pour serum or plasma into amber transport tube (preferred) or transport tube wrapped in aluminum foil to protect from light.

Transport Temperature

Frozen

Specimen Stability

Room temperature: 4 hours

Refrigerated: 24 hours

Frozen: 30 days

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Received room temperature • Received refrigerated

Methodology

Chromatography/Mass Spectrometry

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.

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 FDA. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.

Setup Schedule

Set up: Tues-Sat; Report available: 3-4 days

Report Available

4-5 days

Reference Range

6.2-39.0 nmol/L

Clinical Significance

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.

Performing Laboratory

Quest Diagnostics Nichols Institute Valencia
27027 Tourney Road
Valencia, CA 91355-5386

Last Updated: February 17, 2023

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.