Information on collection, storage, and volume
Plasma and serum, frozen
Three tubes of citrated plasma with 2 mL each and 2 mL serum
Blue-top (sodium citrate) tubes and red-top tube or gel-barrier tube
Plasma and serum must be separated from cells within 45 minutes of venipuncture. Send plasma and serum in plastic transport tubes. To avoid delays in turnaround time when requesting multiple tests on frozen samples, please submit separate frozen specimens for each test requested.