4 hours
Test Updated:
Synthroid (Levothyroxine)
Triiodothyronine
T3
T3 TOTAL
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Test Overview
Chemiluminescent Immunoassay
Thyroid function test, particularly useful in the diagnosis of T3 thyrotoxicosis and confirmation of hyperthyroidism. Needed in patients with clinical evidence for hyperthyroidism, in whom thyroid profile is normal or borderline.
80 - 175 ng/dL
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.