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Thyroid (Expert Forum)

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All levels fine except for low FT-3

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 Dr. Mark Lupo. Topics covered include goiter, graves disease, Hashimoto's thyroiditis, hyperthyroid, hypothyroid, thyroid cancers, thyroiditis, and thyroid stimulating hormone (TSH).

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MedHelp Member's Question

All levels fine except for low FT-3

by lknnc, Jul 31, 2007 12:00AM

Tags: thyroid, Graves disease, Anxiety, constipation, cytomel, dose, Heart, pain, remission, symptom, synthroid, ultrasound, vertigo

I had my thyroid removed due to Graves disease and inability to remain stable on ATD's. The dx at removal was hashitoxicosis.

My thyroid lab's post op have been fairly stable with a TSH of under 1 but in range, FT-4 slightly higher than mid range, FT-3 in low range 2.6-2.8 with range being 2.3-4.2.

The only symptom I have with this low FT-3 is constipation.

Could a low FT-3 cause only constipation and no other hypo symptoms? I have tried cytomel for a few weeks but a higher FT-3 made me have heart palp's and anxiety and it only went to 3.2 to produce those symptoms.

Doctor's Answer

by Mark Lupo, M.D.

, Aug 01, 2007 12:00AM

The levels all look fine -- if a trial of cytomel (make sure it's only 5mcg-10mcg total/day though -- some docs use too much cytomel, ie 25 or 50mcg) does not help then combo t4/t3 is not for you regardless of what your T3 levels show.

Member Comments (2)

by beanerlynn, Aug 02, 2007 12:00AM

To: m.d.

i had i 131 after dealing with graves disease for 3-4 yrs with only a 6 month remission. since the i 131 my tsh has gone from 75.05 and incresing my dose to 88mcg the tsh of 7.45 increased my synthroid to 100mcg (but swithching to levothoroxine) my tsh increase again to 20.?? i am now having shaking hands, hair falling out, and severe pain in my legs, vertigo and headaches my t3 and tw havent returned to normal it has been 8 months since my i 131 is this normal (oh and i had a ultrasound a yr ago and they found no nodules)i would like to hear your appinion. thanks

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