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|Test group||Thyroid tests|
|Performed by||China Basin Chemistry|
|In House Availability||Tuesday, Thursday (day shift)|
|Container type||Gold top|
|Amount to Collect||8 mL blood|
|Preferred volume||4 mL serum|
|Min. Volume||1 mL serum|
|Processing notes||Freeze serum at -20C.|
|Normal range||1.4-33.6 µg/L|
|Turn around times||1-5 days|
|Additional information||Each specimen is routinely tested for the presence of Anti-Thyroglobulin Antibodies (normally ≤ 20 IU/mL); antibody interferes with the assay and can give either falsely high or low results: test results must be interpreted with extreme caution in their presence.
Thyroglobulin levels are useful to assess the presence of residual papillary-follicular thyroid carcinoma. Increasing levels indicate recurrence or metastasis. Levels are not elevated in medullary or anaplastic thyroid carcinomas nor with small tumors, and are generally not useful as a screening test for thyroid cancer.
This protein may be elevated in hyperthyroidism and in Hashimoto's thyroiditis, but its measurement is superfluous for the diagnosis of these conditions.
In the DPC Immulite 2000 assay, the functional sensitivity defined as the lowest value that can be measured in thyroglobulin-negative antibody serum with a 20% coefficient of variation has been estimated to be 0.9 µg/L. Results below this level will be reported as < 0.9 µg/L
|Last Updated||3/19/2013 8:39:42 AM|
If you have additional questions regarding this test, please call: 415-353-1667