Test Details

Mnemonic

THY

Ordering Code

3007960

CPT-4 Code(s)

84432, 86800

Specimen Information

Patient Preparation

According to the reagent manufacturer, consumption of biotin supplements or multivitamins containing biotin, may interfere with the results of this assay. For individuals taking biotin-containing supplements, testing at least three days after cessation of supplement consumption is recommended.

Collect

Serum separator tube (SST)

Specimen Preparation

Centrifuge, separate serum from cells and send 1.0 mL serum in a screw capped plastic vial.

Alternate Specimen

Serum: Red top

Minimum Volume

0.8 mL

Transport Temperature

Refrigerated

Rejection Criteria

Moderately hemolyzed or moderately lipemic specimens, plasma

Stability

Room temperature: Unacceptable
Refrigerated: 7 days
Frozen: 60 days

Methodology

Chemiluminescence
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Reference Range

Thyroglobulin Antibodies: <4.0 IU/mL

Thyroglobulin:
Intact thyroid: 1.6-50.0 ng/mL
Athyrotic, post-thyroidectomy (tumor marker): <0.1 ng/mL
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Performing Laboratory

Warde Medical Laboratory
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