SerumRoche COBAS Electrochemiluminescent Immunoassay (ECLIA) this method has been standardized against the 2nd irp WHO reference standard 80/558
Rejection Criteria
Gross hemolysis
Reference Range(s)
Specimen Requirements
Preferred Specimen
Serum Separator Tube
Minimum Volume
0.75 mL serum
Sample Stability
8 days room temperature 2 weeks refrigerated 2 years frozen. Allow only one freeze/thaw cycle
Transport Temperature
Refrigerated
Collection Instructions
Allow SST to clot in an upright position for
at least 30 minutes, then centrifuge sample within 2 hours
of collection. Refrigerate.
Alternative Specimen
2 mL serum from a plain red top tube. Allow sample toclot in an upright position for at least 60 minutes, thencentrifuge sample and transfer serum to a plastic transporttube within 2 hours of collection. Clearly label tube asserum from a plain red top tube. Refrigerate.
