A 50-year-old female asked:
i have just had a ck up. my thyroid was 0.03 and i was on 112 of synthroid. my dr. increased it to 125? is the tsh not already too low? now on hrt
1 doctor answer • 1 doctor weighed in
Obstetrics and Gynecology 54 years experience
Thyroid "low": The TSH level is what stimulates the thyroid to produce thyroid hormone (T3). If your TSH was low, it can mean that the thyroid is not being forced to manufacture T3. Giving Synthroid will depress the TSH, you are correct, but to know how much active thyroid hormone you have, get a "free" T4 test done by your provider. The TSH will remain low while taking Synthroid, which is normal.
339 viewsAnswered Apr 13, 2018
Last updated Apr 13, 2018
Connect with a U.S. board-certified doctor by text or video anytime, anywhere.
$15 per month
Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.