Thyroglobulin Analyzer
Order Name
Thyroglob An
Test Number: 3612485
Revision Date 10/01/2022
Test Number: 3612485
Revision Date 10/01/2022
| Test Name | Methodology | LOINC Code |
|---|---|---|
|
Thyroglobulin Autoantibody (TG Ab)
|
Enzyme Immunoassay | 8098-6 |
| SPECIMEN REQUIREMENTS | ||||
|---|---|---|---|---|
| Specimen | Specimen Volume (min) | Specimen Type | Specimen Container | Transport Environment |
| Preferred | 3 mL (1.8 mL) | Serum | Clot Activator SST | Refrigerated |
| Instructions | Unacceptable Conditions: Samples left ambient for greater than 8 hours Stability After separation from cells: Ambient 8 hours, Refrigerated 3 days, Frozen 30 days. Thyroglobulin by immunoassay is highly susceptible to biotin interference. Patients taking biotin supplements – particularly at high doses – may show falsely low or undetectable thyroglobulin levels. Please consult with lab if biotin interference is suspected. |
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| GENERAL INFORMATION | |
|---|---|
| Testing Schedule | Initial testing is Set Up Mon-Fri |
| Expected TAT | 1-4 days from set up |
| Notes | If Thyroglobulin Autoantibody is Negative a Labcorp Oklahoma, Inc. performed Thyroglobulin Level by Immunoassy will be Reflexed (CPT 84432) Order code [3612487] Thyroglobulin Level | Result code [3608030] Thyroglobulin Level Stability: Ambient 8 hours, Refrigerated 3 days, Frozen 2 months. If Thyroglobulin Autoantibody is Positive an ARUP performed Thyroglobulin Level by LC-MS/MS will be Reflexed (CPT 84432) Order code [3612488] Thyroglobulin by LC-MS/MS | Result code [3612488] Thyroglobulin Level LCMS Stability: Ambient 8 hours, Refrigerated 1 week, Frozen 6 months. |
| CPT Code(s) | 86800 Reflex to 84432 |
| Lab Section | Chemistry |