Roche COBAS Electrochemiluminescence Immunoassay (ECLIA). Performance characteristics have not been specifically validated for testing of newborns. For repeatedly reactive samples, confirmation testing will be performed at an additional charge.
Rejection Criteria
Heat-inactivated samples
Samples stabilized with azide
Reference Range(s)
Non-Reactive
Specimen Requirements
Preferred Specimen
Serum Separator Tube
Minimum Volume
1 mL serum
Sample Stability
6 days room temperature 14 days refrigerated 6 months frozen
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
1 mL serum from a plain red top tube. Allow sample to
clot in an upright position for at least 60 minutes, then
centrifuge sample and transfer serum to a plastic transport
tube within 2 hours of collection. Clearly label tube as
serum from a plain red top tube. Refrigerate.
