ARUP's Laboratory Test Directory

Thyroxine Binding Globulin : 0070410

Mnemonic: TBG

Ordering Recommendation: Not recommended for routine thyroid screening.
Methodology: Quantitative Chemiluminescent Immunoassay
Performed: Mon, Wed, Fri
Reported: 1-4 days
Specimen Required: 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.

Stability (collection to initiation of testing): Ambient: 24 hours; Refrigerated: 1 week; Frozen: 1 month

Reference Interval:
13.0-30.0 µg/mL
CPT Code(s): 84442
Cross References: TBG (Thyroxine Binding Globulin)