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Vitamin B2 (Riboflavin), PlasmaTest Code
2 mL plasma collected in an EDTA (lavender-top) tube
Wrap tube in aluminum foil to protect from light. Freeze immediately.
Foil wrapped plastic screw-cap vial
Room temperature: 4 hours
Refrigerated: 24 hours
Frozen: 30 days
Fluorometric Detection • High Performance Liquid Chromatography (HPLC)
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.
Quest Diagnostics Nichols Institute