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HelpTest Code T4 T4 (Thyroxine)
Specimen Requirements
Container/Tube: Gold top tube(s)
Specimen Volume: 1 mL of serum
Collection Instructions:
Note: Label specimen appropriately.
Specimen Transport Temperature
Ambient
Performing Laboratory
The Valley Hospital
Reference Values
4.5-10.9 µg/dL
Test Classification and CPT Coding
84436