Test Details
Mnemonic
ZSTRB
Ordering Code
3510025
CPT-4 Code(s)
86316
Specimen Information
Collect
Serum separator tube (SST)
Specimen Preparation
Allow specimen to clot completely at room temperature. Centrifuge, separate from cells within 2 hours and send 2.0 mL serum in screw capped plastic vial.
Alternate Specimen
Serum: Red top
Minimum Volume
0.5 mL
Transport Temperature
Frozen
Rejection Criteria
Specimens exposed to repeated freeze/thaw cycles.
Stability
After separation from cells:
Room temperature: 2 days
Refrigerated: 14 days
Frozen: 2 months
Room temperature: 2 days
Refrigerated: 14 days
Frozen: 2 months
Methodology
Immunofluorescence assay
Reference Range
0.0 - 1.7 ng/mL
Performing Laboratory
ARUP
New York DOH Approval Status
Yes