Fingerstick at home – no collection point needed
- You receive a fingerstick kit with clear instructions
- Easily collect a few drops of blood yourself
- Return via medical mail to the lab
Fingerstick at home – no collection point needed
- You receive a fingerstick kit with clear instructions
- Easily collect a few drops of blood yourself
- Return via medical mail to the lab
What is FT3?
Free Triiodothyronine, abbreviated FT3, is a thyroid hormone in the blood that is essential for regulating metabolism, heart function, digestion, and brain development.
Why should you have FT3 tested?
Testing FT3 is useful for evaluating thyroid function. It is particularly helpful in diagnosing hyperthyroidism or hypothyroidism, especially if other tests, such as those for TSH or FT4, show abnormal results.
What does it indicate?
FT3 levels provide information about how active the thyroid gland is. It helps in diagnosing thyroid diseases and monitoring the treatment of thyroid disorders.
What does a high FT3 level mean?
A high FT3 level may indicate hyperthyroidism (an overactive thyroid gland), which can lead to symptoms such as weight loss, palpitations, increased anxiety, insomnia, and hand tremors.
What does a low FT3 level mean?
A low FT3 level may indicate hypothyroidism (an underactive thyroid gland), which can result in symptoms such as weight gain, fatigue, depression, cold intolerance, and dry skin.
Frequently asked questions
Answers to what people usually want to know.
How does the home test work from A to Z?
After ordering we ship the collection kit to your home. You prick your fingertip, collect a few drops of blood, return it in the envelope, and receive your result digitally by email.
How do I collect my blood sample?
A small prick on your fingertip lets you collect a few drops into a tube. The instructions include step-by-step photos and video, so no guessing required.
How do I return the sample?
In the included return envelope with free shipping. Just drop it in the mailbox; the lab processes your sample as soon as it arrives.
