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HelpOrderable Name VITB2 Riboflavin (Vitamin B2), Plasma
Additional Codes
CNE Order Code: Riboflavin
Useful For
Assessment of riboflavin (vitamin B2) status
Assisting in the diagnosis of suspected vitamin B2 deficiency
Monitoring of vitamin B2 therapy
Method Name
Liquid Chromatography Tandem Mass Spectrometry (LC-MS/MS)
Portions of this test are covered by patents held by Quest Diagnostics
Specimen Type
Plasma HeparinShipping Instructions
Ship specimen in amber vial to protect from light.
Specimen Required
Patient Preparation:
Fasting: 12 hours, required; Infants should have specimen collected before next feeding
Supplies: Amber Frosted Tube, 5 mL (T915)
Collection Container/Tube:
Preferred: Green top (sodium or lithium heparin)
Acceptable: Light-green top (sodium or lithium heparin plasma gel)
Submission Container/Tube: Amber vial
Specimen Volume: 2 mL Plasma
Collection Instructions: Within 2 hours of collection, centrifuge and aliquot plasma into a amber vial.
Specimen Minimum Volume
Plasma: 0.5 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Plasma Heparin | Refrigerated (preferred) | 28 days | LIGHT PROTECTED |
| Frozen | 28 days | LIGHT PROTECTED | |
| Ambient | 72 hours | LIGHT PROTECTED |
Reject Due To
| Gross hemolysis | OK |
| Gross lipemia | Reject |
| Gross icterus | OK |
Reference Values
1-19 mcg/L
Day(s) Performed
Monday, Wednesday, Friday
Report Available
2 to 5 daysCPT Code Information
84252