What a plonker!

[Guest guest]

Hi Check out what I have just been reading, look at the docs response

and see if you can pick up the VERY obvious lack of knowledge here!!

Question: Low T3 high T4

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cmbajb - Tue May 08, 2007 8:32 pm

Hi. I am a 45 year old female, panhypopituitary (Cushing's disease

first, have 1/2 of my pituitary left), CFS, Fibromyalgia, Celiac

disease, silent GERD, Sjogrens. I have been on Synthroid for 11 years

(in addition to all the other pituitary meds), and in the past 3

years, my FT4 has bounced up and down and my FT3 has slowly gone

lower. Now, FT4 is at the top of the range and FT3 is at the bottom

(on 150mcg of Synthroid). My doctor has prescribed 150mcg of

sustained-release T3. In my case, is it usual to only use T3 and no

T4?

Dr. Chan Lowe - Wed May 09, 2007 11:17 pm

Synthroid is synthetic T4. If you are hypothyroid, your body will

produce less than normal amounts of T3 which is then converted to T4.

By taking supplemental T4, you can maintain a normal thyroid state

but the body continues to underproduce T3.

So, your labs are exactly as I would expect, T4 levels that are

relatively normal and T3 levels that continue to go lower.

T4 is generally thought to be the active form of thyroid hormone.

Generally there is no need to replace T3 and T3 levels are rarely

checked.

I would recommend you see an endocrinologist to better determine

which medications you should be on.

Best wishes.

[Guest guest]

All I can say is - thank heavens he decided to refer the poor girl to an endocrinologist - he obviously knows NOWT about thyroid issues - and to think we are told to do what the doctor says. LOL!

Luv - Sheila

Hi Check out what I have just been reading, look at the docs response and see if you can pick up the VERY obvious lack of knowledge here!!Question: Low T3 high T4--------------------------------------------------------------------cmbajb - Tue May 08, 2007 8:32 pm Hi. I am a 45 year old female, panhypopituitary (Cushing's disease first, have 1/2 of my pituitary left), CFS, Fibromyalgia, Celiac disease, silent GERD, Sjogrens. I have been on Synthroid for 11 years (in addition to all the other pituitary meds), and in the past 3 years, my FT4 has bounced up and down and my FT3 has slowly gone lower. Now, FT4 is at the top of the range and FT3 is at the bottom (on 150mcg of Synthroid). My doctor has prescribed 150mcg of sustained-release T3. In my case, is it usual to only use T3 and no T4? Dr. Chan Lowe - Wed May 09, 2007 11:17 pm Synthroid is synthetic T4. If you are hypothyroid, your body will produce less than normal amounts of T3 which is then converted to T4. By taking supplemental T4, you can maintain a normal thyroid state but the body continues to underproduce T3. So, your labs are exactly as I would expect, T4 levels that are relatively normal and T3 levels that continue to go lower. T4 is generally thought to be the active form of thyroid hormone. Generally there is no need to replace T3 and T3 levels are rarely checked. I would recommend you see an endocrinologist to better determine which medications you should be on. Best wishes. No virus found in this incoming message.

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