0.5 mL serum. Allow SST to clot in an upright position for at least 30 minutes, then centrifuge sample within 2 hours of collection. Transfer serum to a plastic transport tube. Clearly label tube as serum. Freeze. Critical frozen (CFZ). When multiple tests are ordered, submit separate tube for this test.
Minimum Volume
0.1 mL Serum
Transport Temperature
Critical Frozen (CFZ)
Rejection Criteria
Room Temperature Samples Refrigerated Samples
Specimen Stability
After Separation From Cells: 2 Hours Room Temperature Unacceptable Refrigerated 2 Weeks Frozen
0.5 mL serum. Allow SST to clot in an upright position for at least 30 minutes, then centrifuge sample within 2 hours of collection. Transfer serum to a plastic transport tube. Clearly label tube as serum. Freeze. Critical frozen (CFZ). When multiple tests are ordered, submit separate tube for this test.
Minimum Volume
0.1 mL Serum
Transport Temperature
Critical Frozen (CFZ)
Rejection Criteria
Room Temperature Samples Refrigerated Samples
Specimen Stability
After Separation From Cells: 2 Hours Room Temperature Unacceptable Refrigerated 2 Weeks Frozen
Serum Separator Tube