VITAMIN B2 (RIBOFLAVIN)
Draw blood in a lavender EDTA tube. Spin, separate and send 2.0 mL plasma FROZEN in an amber screw-capped vial (indicate plasma/lav top) on transport tube. PROTECT FROM LIGHT. Contact lab for dry ice; once received ship sample out to lab. IF NOT RECEIVED TO LAB WITHIN 24HRS.
ROOM TEMP 4 HOURS; REFRIGERATED 24HRS: FROZEN 30 DAYS
5-7 days (performed Mon/Wed/Fri)