Pathology tests database

Sample and container requirements

EDTA Whole Blood Lithium Heparin Whole Blood (non-gel) Packed Red Blood Cells (please label tube as red cells)

Minimum volume required

1 mL whole blood 400 µL of red cells

Special requirements

Light-sensitive; wrap in tin foil. Send whole blood by first class post within 72 hours (do not freeze whole blood). If delivery to Glasgow is outwith 72 hours of sample collection, prepare red cells (minimum volume 300 µL) by removing and discarding plasma and buffy layer (mark clearly on tube that they are red cells) and store frozen until sending and then send by first class post (ice or dry ice not required).

Patient preparation

Ideally a fasting sample should be collected, especially if the patient is receiving oral or parenteral vitamin B2 supplementation. If this is not possible, sample should be taken at least 8 hours post treatment for patients receiving oral supplementation or TPN.

Sample viability

Turnaround time

21 days

Reference range

Please refer to report for reference ranges.

Clinical guidance

Please follow the link below to the referral laboratory website for more information: https://www.trace-elements.co.uk/vitamin-b2.asp

Notes

Sent to Glasgow Royal Infirmary