Thyroxine Binding Globulin TBG
Synonyms |
|
Allscripts (AEHR) Order Name |
Thyroxine-Binding Globulin (TBG), Serum |
Sunrise Clinical Manager (SCM) Order Name |
Thyroid Binding Globulin, Serum |
EPIC Order Name |
|
Clinical Info |
Measuring TBG can aid in differentiating true thyroid dysfunction from alterations in thyroid hormone binding, especially when the total thyroid hormone results appear discordant with the patient’s clinical presentation, thyroid stimulating hormone (TSH) results or free thyroid hormone results. |
Specimen Type |
Blood |
Specimen Volume |
1 mL of Serum (min 0.5 mL) |
Container |
Gold Top Tube |
Collection Instructions |
Serum must be separated from blood cells by centrifugation, ideally within 2 hours of collection. |
Transport Instructions |
Refrigerated |
Specimen Stability |
2 days: Refrigerated |
Methodology |
Chemiluminescent immunoassay |
Days Performed |
Monday through Saturday |
Performing Laboratories |
Northwell Health Core Lab (CFAM) |
CPT |
84442 |
PDM |
5901245 |
Result Interpretation |
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Forms |
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