Vitamin B2
| Abbrev Code: | VTB2 | ||
| Order Code: | LAB4709 | Order Name: | Vitamin B2 |
| Synonyms: | Riboflavin; Vitamin B2 Plasma | ||
| Methodology: | Liquid chromatography/Tandem mass spectrometry | ||
| CPT Codes: | 84252 x1 | ||
| 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. |
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Collection Instructions
| Specimen: | Blood |
| Optimal Volume: | 4 mL |
| Minimum\Peds Volume: | 1.2 mL |
| Container: | Green (sodium heparin, no gel or lithium heparin, no gel) protect from light Alternate Containers: Green (lithium heparin, 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 serum. Gross lipemia. |
Processing and Shipping
| Specimen Processing: | Within 2 hours of collection: Centrifuge and aliquot 2 mL; 0.5 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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