Thyroxine Binding Globulin

Synonyms

  • LAB128
  • TBG
  • THYROID BINDING GLOBULIN
  • THYROXINE BINDING GLOBULIN
  • THYROXINE-BINDING GLOBULIN (TBG), SERUM

Cerner Name

Thyroid Binding Globulin

Clinical Info

Distinguish between high T4 levels due to hyperthyroidism and due to increased binding by TBG in euthyroid individuals who have normal levels of free hormones; document cases of hereditary deficiency or increase of TBG; work-up of thyroid disease.

Specimen Sources

Blood, Arterial Blood, Capillary Blood, Central Line Blood, Venous

Specimen Types

Blood

Specimen Volume

Container

Gold Top Tube

Collection Instructions

Container/Tube: Gold top(s) tube(s)
Specimen Volume: 0.5 mL (minimum volume: 0.35 mL) of serum
Transport Temperature: Refrigerated

Transport Instructions

Refrigerated

Specimen Stability

Methodology

Immunochemiluminometic Assay (ICMA)

Days Performed

Monday through Saturday

Performing Laboratories

LabCorp of America

CPT

84442

PDM

5901245

Results
Component Name Base Name Common Name External Name
THYROID BINDING GLOBULIN THYRBNDGLB THYROID BINDING GLOBULIN Thyroid Binding Globulin

Result Interpretation

    AGE Male
µ g/mL
 Female
µ g/mL
1-11 months≥ 16 -33 18 - 32
1-3 years 16-32 19-34
4-6 years 17-30 18-31
7-12 years 17-29 15-29
13-18 years 13-26 14-29
>18 years 13-39 13-39

Forms
Endocrine LAB128 build edit