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 grossly lipemic specimens, plasma
Stability
Room temperature: Unacceptable
Refrigerated: 7 days
Frozen: 60 days
Refrigerated: 7 days
Frozen: 60 days
Methodology
Chemiluminescence
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
Thyroglobulin:
Intact thyroid: 1.6-50.0 ng/mL
Athyrotic, post-thyroidectomy (tumor marker): <0.1 ng/mL
Performing Laboratory
Warde Medical Laboratory