Feeling Off? What a Thyroid Check Actually Tells You
The thyroid is a small gland with an outsized job: it controls how your body uses energy. When it’s off, even a little, the symptoms can be easy to write off as stress, aging, or just a bad week.
Our Thyroid Check measures two things together: TSH (the signal your brain sends to your thyroid) and Free T4 (the actual hormone your thyroid produces). Looking at both gives a fuller picture than either one alone.
Reasons people check their thyroid
- Ongoing fatigue that doesn’t improve with rest
- Unexplained weight gain or weight loss
- Feeling unusually cold, or unusually warm, compared to people around you
- Mood changes, or hair and skin changes
- Following up on a medication that affects thyroid function
None of these symptoms point to the thyroid specifically — that’s exactly why testing, rather than guessing, is worth doing.
What to expect
No fasting needed. If you take biotin supplements, mention it to your doctor, since biotin can interfere with thyroid test results.
Ready to order? The Thyroid Check is $54 at SelectATest, with results in your own secure online portal.
This post is for general information and does not replace advice from your own doctor. Tests are ordered by an independent licensed physician, and results are not a diagnosis. If you are having a medical emergency, call 911.