4 mL (2 mL min.) whole blood in 1 metal free Royal Blue Top (K2EDTA) tube available from ADL. Ship refrigerated. DO NOT FREEZE. Patient should avoid mineral supplements, Vitamin B12 or Vitamin B Complex 3 days prior to specimen collection. Use powderless gloves during specimen collection.
Sample Daily by 1 pm
Report 3rd Day Evening
Use only specified containers available from ADL. If gadolinium or iodine containing contrast media has been administered, the specimen should not be collected for 96 hours.