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

Methodology

Enzyme-Linked Immunosorbent Assay (ELISA)
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Reference Range

≤2.0 IU/L
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Performing Laboratory

Quest SJC
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