Vitamin B2


Sunquest Code:VTB2  
Epic Code:LAB4709Epic Name:VITAMIN B2
Synonyms:Riboflavin; Vitamin B2 Plasma
Methodology:Liquid chromatography/Tandem mass spectrometry
Turnaround Time:Specimens are sent to reference laboratory Mon-Fri; results are reported within 2-5 days.
Compliance:

This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the U.S. Food and Drug Administration.



Collection Instructions

Specimen:Blood
Optimal Volume:1 mL
Minimum\Peds Volume:0.7 mL
Container:Green (sodium heparin, no gel) protect from light
Collection Instructions:Collect following an overnight (12-24) fast (water only). For infants, collect prior to next feeding). Protect specimen from light.
Causes for Rejection:Samples not protected from light; EDTA plasma or gel tube for collection, serum. Gross hemolysis.


Processing and Shipping

Specimen Processing:Within 2 hours of collection centrifuge and aliquot 0.5 mL, 0.25 mL minimum, into light protected vial.  Store refrigerated.
Shipping Instructions:Ship refrigerated. Protect from light.
Stability:Light protected 72 hours room temperature, 28 days refrigerated (preferred) or frozen.
Test Performed at or Referral Lab Lab Sendouts  (Mayo)
Referral Lab number:VITB2


Interpretive

Reference Range:1-19 mcg/L
Use:Evaluation of persons who present with signs of ariboflavinosis.


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