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Geisinger Medical Laboratories Test Catalog
THYROGLOBULIN, LC/MS/MS |
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Geisinger Epic Procedure Code: LAB1116
Geisinger Epic ID: 52389
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SPECIMEN COLLECTION |
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Specimen type: |
Serum | |
Preferred collection container: |
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Alternate Collection Container: |
6 mL red-top (plain, non-serum separator) tube
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Specimen required: |
1 mL serum; minimum 0.5 mL | |
| SPECIMEN PROCESSING |
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Specimen processing instructions: |
Centrifuge and aliquot. | |
Transport temperature: |
Room temperature. | |
Specimen stability: |
Room temperature: 6 days. Refrigerated: 7 days. Frozen: 28 days. | |
Rejection criteria: |
Hemolysis • Lipemia • Plasma • Icteric specimen | |
TEST DETAILS |
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Additional information: |
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by the FDA. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes. | |
CPT code(s): |
84432 | |
| Note: The billing party has sole responsibility for CPT coding. Any questions regarding coding should be directed to the payer being billed. The CPT codes provided by GML are based on AMA guidelines and are for informational purposes only. | ||
Methodology: |
Chromatography/Mass Spectrometry |
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Synonyms: |
Quest test code 90810, Thyro LMM
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Clinical significance: |
Measurement of thyroglobulin (Tg) is useful in the detection of residual or recurrent thyroid cancer. Many individuals develop auto-antibodies to Tg (Tg Ab) and the presence of Tg Ab interferes with the measurement of immunoassay Tg. The LC/MS/MS assay will provide quantitative measurement of Tg in the presence of Tg Ab. | |