RIBOFLAVIN (VITAMIN B2), PLASMA
Testing of nonfasting specimens or the use of dietary vitamin B2 supplementation can result in elevated plasma vitamin B2 concentrations
Specimen Collection Requirements
Green Top Lithium Heparin
Transfer plasma into an Amber vial.
Gross Hemolysis. Specimen not protected from light, plasma gel tube, EDTA, or serum
Refrigerated 7 days; Frozen 14 days
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.
Monday through Friday; 8 a.m
High-Performance Liquid Chromatography (HPLC)
Normal: 3-15 mcg/L
Marginally low: 2 mcg/L
Diminished: <2 mcg/L
Thursday, January 5, 2017 03:42:29 AM