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Test Code T4 T4 (Thyroxine), Total Only

Methodology

Chemiluminescence

Specimen Requirements

Please use preferred tube types whenever possible.

Preferred Container/Tube Type: Green Top (Lithium Heparin) Tube

Alternate Serum Separator Tube (SST)

Transport refrigerated.

Day(s) Test Set Up

Monday through Sunday

Reference Values

4.6-12.0 µg/dL

Test Classification and CPT Coding

84436

Performing Laboratory

Beebe Healthcare Laboratory

Performing Location

Margaret H. Rollins Laboratory

South Coastal Campus Laboratory

Specimen Tube Color

  Tube Cap Color Tube Name
Primary  Mint Green Lithium Heparin
Alternate    Serum Separator Tubes (SST)