Vitamin B2 (Riboflavin)
Collect lavender EDTA, immediately centrifuge and transfer 2 mL plasma to an amber screw top transport tube, indicate sample type on tube and send on dry ice.
Critical frozen. Protect from light.
Room temp: Unacceptable, Refrigerated: Unacceptable, Frozen: 30 days
5-6 days Performed Tuesday-Saturday