Test Overview
Clinical Utility
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.
Method
Chromatography/Mass Spectrometry
Result Included
Vitamin B2 (Riboflavin)
Specimen
Specimen Type
Gel-separator tubes are not acceptableSerum
Plasma
Containers
Preferred Containers
Red top (no additive)
Acceptable Containers
Lavender top (EDTA)
Volume
Sample Volume
1 mL
Minimum Volume
0.5 mL
Specimen Comment
Avoid gel-separator tubes.
Patient Preparation
Overnight fasting is required. Avoidance of vitamin supplements for 24 hours prior to collection is preferred.
Collection & Handling
Handling Information
Separate Immediately and transfer to amber vial to protect from light and freeze.
Store and send frozen.
Stability
| Ambient | Refrigerated | Frozen |
|---|---|---|
| Unacceptable | Unacceptable | 30 days |
If the specimen thaws, it is unsuitable for analysis.
Rejection Criteria
| Criteria | Specification |
|---|---|
| Specimen | Not frozen or not protected from light or Gel tube |
Performance & Interpretation
Turnaround Time
8 days
Results
Name
Units
Reference Range
Conversion
-
Vitamin B2 (Riboflavin)nmol/L6.2 - 39.0
Referral Location
Out-of-Country
Interface & Setup
HL7 Interface Codes
| Order Code | Result Name | Result Codes | Units |
|---|---|---|---|
| VITB2 | Vitamin B2 | 36650 | nmol/L |
Test Version
Last Updated
2022-12-15