Draw blood in a plain red-top tube/1.0mL serum. Spin, separate, remove serum from cells within 6 hours and send serum refrigerated in screw capped plastic vial. Indicate “serum/red top” on transport vial and send refrigerated.
Room Temperature Unacceptable, Refrigerated 7 days, Frozen 14 days
2-4 days Performed Mon, Thurs