T3, FREE (Triiodothyronine)

Test Code: 148

Specimen Collection: Serum

Component:
T3, Free

Method:
IA

Collection Notes: Serum is the recommended sample type for this assay.

Clinical Utility: The determination of T3 is utilized in the diagnosis of T3-hyperthyroidism, the detection of early stages of hyperthyroidism and for indicating a diagnosis of thyrotoxicosis factitia.

CPT Code: 84481

Testing Location: AML

Specimen/Stability Type

Serum (1 mL)

Temperature:

Refrigerated 5 Days

Frozen >5 Days

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