One 7.5 mL serum separator tube (SST) or one 4 mL plasma separator tube (PST heparin).
Handling:
Centrifuge and transport serum or plasma refrigerated in original tube. Do not freeze. Serum or plasma can be separated and stored in a tightly capped container. Separated specimen can be frozen.
Stability:
Specimen stable 24 hours ambient, 1 week refrigerated, or indefinitely if frozen.
Standard Volume:
2 mL serum.
Minimum Volume:
0.5 mL serum.
Transport:
Refrigerated or frozen on dry ice.
Rejection Criteria:
Specimen other than serum or heparinized plasma; specimen frozen in original tube.