After The Test & Treatment Options
After the Test
Once your specimen is submitted, results are typically processed and available within a few business days. However, processing times may vary. When ready, your results will be delivered in a clear, easy-to-understand report. If any results suggest a potential infection, you’ll receive a call from an independent healthcare coordinator. Independent physicians are also available to answer any questions or discuss your results in detail.
Treatment Options
As part of your purchase, you have the opportunity to consult with an independent physician. If appropriate, they may be able to prescribe treatment based on your test results.
Age: 18+
Must be 18+ to order blood tests.
Collection Method
In person at a location
Test Details & What It Measures
A Free T3 test measures the level of triiodothyronine (T3), a thyroid hormone that plays a crucial role in regulating metabolism, energy production, and body temperature. Unlike total T3, which includes both bound and free hormones, the Free T3 test specifically measures the active form of the hormone that is available for use by your body’s cells. This test is particularly helpful in evaluating thyroid function in individuals with symptoms of hypothyroidism (low thyroid function) or hyperthyroidism (overactive thyroid), even when other thyroid tests, like TSH (Thyroid Stimulating Hormone), may appear normal.
Normal Free T3 levels typically range from 2.3 to 4.2 pg/mL, though exact ranges can vary slightly between laboratories. Low levels of Free T3 may suggest an underactive thyroid, while high levels may indicate hyperthyroidism or other thyroid disorders. If your provider suspects thyroid dysfunction, the Free T3 test may be ordered alongside other thyroid tests, such as Free T4 and TSH, to get a more comprehensive understanding of your thyroid health.
Citations
Hennessey, J. V., & O’Shea, M. A. (2017). Clinical management of thyroid disorders: Practical aspects of diagnosis and treatment. American Journal of Medicine, 130(3), 292-298. https://doi.org/10.1016/j.amjmed.2016.10.017
