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.
Serum (1 mL)
Ambient 8 Hours
Refrigerated 5 Days
Frozen 1 Year
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