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Thyroid Cancer, Nodules & Hyperthyroidism (Expert Forum)
Need treatment for low free T3?
Answered by
Mark Lupo, M.D. - Thyroid Nodules, Thyroid Cancer, hyperthyroidism, hypothyroidism, Thyroid Ultrasound
Thyroid & Endocrine Center of Florida
Sarasota - FL
Questions in the Thyroid forum are answered by Mark Lupo, MD. Topics covered include Goiter, Graves Disease, Hyperthyroid, Parathyroid/Calcium Problems, Thyroid Cancer, Thyroid Nodules/Cysts, Thyroiditis, Thyroid & Pregnancy, Thyroid Stimulating Hormone (TSH), Thyroid Tests, and Thyroid Surgery.
Need treatment for low free T3?
by snowyval, Jun 27, 2009 12:22PM
I have been trying to lose a significant amount of weight (60 lbs). For over 6 months now I have been working out 5-6 days a week (70 min. on the elliptical runner, followed by 25-30 min of resistant/weight training) and I have only lost 10 pounds. I have a very "clean diet" and my calorie count ranges from 1200-1500/day. I have been trying to build some muscle, but am finding it difficult, (I am perimenopausal and found out my testosterone is low (<10, lab normals 20-130 ng/dL) which is probably why. My TSH is 1.6 (lab normal 0.5-3.0) Free T4 is 0.9 (lab normal 0.7-2.4ng/dL)
Free T3 is low at 1.8 (lab normal 2.5-6.5pg/ml) I'm have been quite fatigued and very often can fall asleep at the drop of a hat! Really the only symptoms of hypothyroidism I have are the fatigue, very slow weight loss, mental fogginess and really needing to push myself to do what needs to be done. Is my Free T3 result significant enough to warrant treatment? YFI: Saliva Cortisol is normal in the morning, but drops below normal for the remainder of the day.
Thank you.
Free T3 is low at 1.8 (lab normal 2.5-6.5pg/ml) I'm have been quite fatigued and very often can fall asleep at the drop of a hat! Really the only symptoms of hypothyroidism I have are the fatigue, very slow weight loss, mental fogginess and really needing to push myself to do what needs to be done. Is my Free T3 result significant enough to warrant treatment? YFI: Saliva Cortisol is normal in the morning, but drops below normal for the remainder of the day.
Thank you.
Doctor's Answer
by Mark Lupo, M.D., Jun 28, 2009 09:08AM
, Jun 28, 2009 09:08AM
Would repeat the thyroid labs -- if still with low T3 then consider seeing an endocrinologist. Usually this pattern is not clinically significant and does not require treatment, but in rare cases this pattern may represent a pituitary problem.
