Vitamin B2 (Blood)

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Testing Laboratory

Auckland Te Toka Tumai | Auckland Hospital

Department

Chemical Pathology

Delphic Registration Code (Alpha Code)

FADH

Test Code (Numeric Code)

4093

Laboratory Handling

Transport

Sample must be frozen and protected from light.

Separating

Do not separate.

    If Vitamin B6 is also requested and there is only one tube, please split before freezing and sending.

    Laboratory

    LabPLUS High Performance Liquid Chromatography

    Sample Stability

    Must be light protected and stored at -20°C if analysis cannot be completed within 8 hours.

Synonyms

Riboflavin, Vitamin B2, FAD, Flavine Adenine Dinucleotide, vB2

Turnaround Time

1 week

This test may be vetted by the laboratory. Please include relevant clinical information on the request form to ensure appropriate tests are approved. See the 'Clinical Information' section below for more information on the indications for testing.

Specimen Type

  • Whole Blood

Specimen Requirements

Tube/Container Type:

Preferred
  • EDTA (Lavender Cap)
Preferred Sample Volume (ml)

4

Paediatric Specimen Requirements

Tube/Container Type:

Preferred
  • EDTA (Microtainer)
Preferred Sample Volume (ml)

1

Pre-testing Requirements

Blood should be taken at least 8 hours after supplementation, ideally after a period of fasting.

Additional Specimen Information

If Vitamin B6 is also required, then two tubes should be collected.

Last updated: 06/08/2026