Thyroid Cancer (Thyroglobulin) Monitoring
Also known as: Thyroglobulin Antibody, Thyroglobulin Tumor Markers, Thyroglobulin (Tg)
Use
Measurement of thyroglobulin (Tg) is primarily used to monitor patients with well‑differentiated thyroid cancer following thyroidectomy and ablation, especially to detect residual or recurrent disease. When thyroglobulin autoantibodies (TgAb) are present, an LC/MS/MS method is used to accurately quantify Tg levels that may be underestimated by immunoassay methods.
Special Instructions
Not provided.
Limitations
Not provided.
Methodology
Immunoassay (Immunoenzymatic)
Biomarkers
Result Turnaround Time
8 days
Related Documents
For more information, please review the documents below
Specimen
Serum
Volume
3‑6 mL
Minimum Volume
1.5 mL
Container
Red Top (No Additive)
Collection Instructions
No sample should be drawn until at least 8 hours after last biotin administration.
Causes for Rejection
Hemolysis; Lipemia; Plasma; Icteric specimen
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 6 Days |
| Refrigerated | 7 Days |
| Frozen | 28 Days |
Other tests from different labs that may be relevant