Thyroxine Binding Globulin
0070410
Ordering Recommendation
Not recommended for routine thyroid screening.
Mnemonic
TBG
Methodology
Quantitative Chemiluminescent Immunoassay
Performed
Mon, Wed, Fri
Reported
1-4 days  
New York DOH Approval Status
This test is New York DOH approved.
Submit With Order
Specimen Required
Patient Preparation
  
Collect
Serum separator tube.  
Specimen Preparation
Transfer 0.5 mL serum to an ARUP Standard Transport Tube. (Min: 0.4 mL)  
Storage/Transport Temperature
Frozen.  
Unacceptable Conditions
Plasma, tissue or urine. Grossly hemolyzed or lipemic specimens.  
Remarks
  
Stability
Ambient: 24 hours; Refrigerated: 1 week; Frozen: 1 month  
Reference Interval
13.0-30.0 µg/mL  
Interpretive Data
 
Note
 
CPT Code(s)
84442
Components
Component Test Code*Component Chart NameLOINC
0070410Thyroxine Binding Globulin3021-3
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
  • Serum TBG
  • TBG
  • TBG serum