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90814: Thyroid Cancer (thyroglobulin) Monitoring Print View
Thyroglobulin Antibody     IU/mL 

PRIMARY
1 Serum 3 (1.5) mL   Frozen - 28 Day(s)/Room Temperature - 6 Day(s)/Refrigerated - 7 Day(s)  
ALTERNATE

Thyroglobulin measurements are most useful in the postoperative monitoring of patients with papillary, follicular, and Hurthle cell carcinomas. However, approximately 20% of individuals develop autoantibodies to thyroglobulin. Since these antibodies interfere with immunoassay measurement of thyroglobulin, it is necessary to determine the presence or absence of antibodies before measuring thyroglobulin. This panel provides a sensitive method for determination of thyroglobulin autoantibodies, with subsequent measurement of thyroglobulin by either a sensitive immunoassay (Tg Ab negative samples) or LCMSMS (Tg Ab positive samples). The mass spectrometry assay has no interference from autoantibodies.
Setup Schedule
Monday-Friday

Reported (Analytical Time)
Same day

CPT Code
86800

The CPT codes provided are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.

Notes
3 mL (1.5 mL minimum) serum Thyroglobulin Antibody, Electrochemiluminescence *Thyroglobulin, Second Generation (Beckman Coulter)* Thyroglobulin, LC/MS/MS If Thyroglobulin Antibody is negative, then Thyroglobulin is tested on the Beckman Coulter DxI (CPT code: 84432). If Thyroglobulin Antibody is positive then, Thyroglobulin is tested by LC/MS/MS (CPT code: 84432). METHODOLOGY for Thyroglobulin Antibody: Immunoenzymatic METHODOLOGY for Thyroglobulin, Second Gen: Chemiluminescence METHODOLOGY for Thyroglobulin, LC/MS/MS: LC/MS/MS
Reject Criteria: Hemolysis, lipemia, plasma, icteric
Transport Temperature: Room Temperature






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