Test directory: Vitamin B2

Ordering Code 333
Test Name Vitamin B2
Alias Riboflavin
Preferred Specimen Plasma
Preferred Container EDTA, K2 (Lavender) - protected from light
Other Specimen/Container Serum in Plain (Red) - protected from light
Optimum Volume 1 mL
Collection Instructions Wrap tube in aluminum foil to protect from light.
Handling Instructions Submit a well-mixed, aliquot specimen in an Amber Transport
Tube (or aliquot tube that is wrapped in foil to protect from light).
Transport Requirements Oahu: Frozen
Airline: Frozen
Specimen Stability Ambient: Not Stable
Refrigerated: Not Stable
Frozen: 1 Month
Rejection Criteria Received ambient or refrigerated at reference laboratory,
Not protected from light, Thawed, Gel barrier tube
Avail. Stat NO
Analytic Time Up to 7 Days
Methodology Liquid Chromatography/ Tandem Mass Spectrometry (LC/MS/MS)
Reference Lab  Quest Diagnostic Lab-NI

Reference range(s)

The reference ranges listed below are valid on this date of June 29, 2025.
Component Age Male Norm Male Critical Low Male Critical High Female Norm Female Critical High Female Critical Low Units Add'l info
Vitamin B2 ALL See report.