THYROXINE BINDING GLOBULIN (TBG) | |
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Test Code: L959 | Specimen Collection: Serum |
Component: TBG | Method: IA |
Collection Notes: Grossly lipemic, grossly hemolyzed, and/or grossly icteric specimens are not acceptable. | |
Clinical Utility: TBG is elevated with estrogen therapy (especially oral contraceptive agents), during pregnancy and or hepatitis. Serum TBG may be decreased in cirrhosis, in the nephritic syndrome and by androgens. | |
CPT Code: 84442 | Testing Location: Sent to reference lab |
SPECIMEN/STABILITY TYPETemperature:Serum (1 mL) Ambient 7 Days Refrigerated 7 Days Frozen 28 Days |