Products Category : Healthcare / Biochemistry
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Brand name : Healthy laboratory
A free or total triiodothyronine (free T3 or total T3) test is used to assess thyroid function. It is ordered primarily to help diagnose hyperthyroidism and may be ordered to help monitor treatment of a person with a known thyroid disorder.
High T3 levels can indicate several conditions, including hyperthyroidism and thyrotoxicosis (excess circulating hormones). In some cases, they can signify thyroid cancer, but this disease does not often cause abnormal T3 levels. Thyrotoxicosis and thyroid cancer are rare, so hyperthyroidism is more commonly the cause.
