Client or client's physician then decides whether additional testing is required. Complete testing may also be ordered in advance. Otherwise, a second serum sample must be sent.
Client visits physician office or laboratory recommended by physician.
40 mL of venous blood is drawn into red-top vacuutainer tubes employing conventional venapuncture techniques. The blood is allowed to clot at room temperature for 1 to 2 hours. Clotted blood is then centrifuged at 1,000 R.P.M. for 15 minutes. Following centrifugation, serum is carefully withdrawn from above clot and aliquoted into clean polypropylene tubes. Tubes are labeled with client's name and social security number and placed in refrigerator until ready for mailing.