Vitamin B2 (Riboflavin), Plasma

Test Code
VITB2

CPT Codes
84252

Preferred Specimen
2 mL plasma collected in an EDTA (lavender-top) tube

Minimum Volume
0.5 mL

Instructions
Wrap tube in aluminum foil to protect from light. Freeze immediately.

Transport Container
Foil wrapped plastic screw-cap vial

Transport Temperature
Frozen

Specimen Stability
Room temperature: 4 hours

Refrigerated: 24 hours

Frozen: 30 days

Methodology
Fluorometric Detection • High Performance Liquid Chromatography (HPLC)

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.

Performed By
Quest Diagnostics Nichols Institute



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.