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Test Code FT3 T3 (Triiodothyronine), Free, Serum

Additional Codes

Sunrise Clinical Manager (SCM) Orderable:   Free Triiodothyronine, Serum

AllScripts (AEHR) Orderable:  Free T3

Performing Laboratory

Northwell Health Laboratories


Immunoassay (ECLIA)

Reference Values

1.80-4.60 pg/mL

Test Classification and CPT Coding


Specimen Required

Container/Tube: Gold-top tube(s)

Specimen: 1 mL of serum

Transport Temperature: Refrigerate

Stability: 5 Days Room Temperature

                7 Days Refrigerated

                30 Days Frozen

Day(s) and Time(s) Performed

Monday through Sunday, Continuously

Computer Interface Code

PDM #  5910011