Test Details
Mnemonic
TSHRA
Ordering Code
3400198
CPT-4 Code(s)
83520
Specimen Information
Collect
Serum separator tube (SST)
Specimen Preparation
Clot specimen completely at room temperature. Centrifuge and separate serum from cells within 1 hour of collection. Send 1.0 mL serum in a screw capped plastic vial.
Alternate Specimen
Serum: Red top
Minimum Volume
0.5 mL
Transport Temperature
Refrigerated
Rejection Criteria
Gross hemolysis
Stability
Room temperature: 7 days
Refrigerated: 14 days
Frozen: 21 days
Refrigerated: 14 days
Frozen: 21 days
Methodology
Enzyme-Linked Immunosorbent Assay (ELISA)
Reference Range
≤2.0 IU/L
Performing Laboratory
Quest SJC
New York DOH Approval Status
Yes