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BCH Order Code T3U T3 Uptake, Serum

Performing Laboratory

Boulder Community Health

Specimen Requirements

Container/Tube: Plain, red-top tube(s) or serum gel tube(s) – EDTA or heparinized plasma is also acceptable.

Specimen: 1 mL of serum

Collection Instructions: Spin down

Specimen Transport Temperature

Refrigerate

Methodology

Competitive Immunoassay

Useful for the differential diagnosis of thyroid disease.

Reference Values

23.5-40.6%

Day(s) Test Set Up

Monday through Friday

Test Classification and CPT Coding

84479