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Unit Code 800092:
T3 (Triiodothyronine), Free, Serum

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Useful For

Free T3 is a second- or third-level test of thyroid function. It provides

further confirmation of hyperthyroidism, supplementing the T4,

sensitive thyrotropin (sTSH), and total T3 assays.

 

Evaluating clinically euthyroid patients who have an altered

distribution of binding proteins

 

Monitoring thyroid hormone replacement therapy

Method Name

Immunoenzymatic Assay

Reporting Name

T3 (Triiodothyronine), Free, S

Ordering Mnemonic

JC/FT3
FT3/JC

Aliases

Free T3 (Triiodothyronine) Performed at Mayo Clinic Jacksonville

Free Triiodothyronine Performed at Mayo Clinic Jacksonville

FT3 (Free Triiodothyronine) Performed at Mayo Clinic Jacksonville

T3 (Triiodothyronine), Free, S Performed at Mayo Clinic Jacksonville

Triiodothyronine, Free Performed at Mayo Clinic Jacksonville

Key