FT3

[Raffi3]

I have no thyroid. FT3 range is 3.5-6.5. Wondered how much FT3 I should have. Last test was FT3 at 5.. Read if FT3 sits unused for a time it can cause damage.

GP says I need some FT3.

THANK YOU

[Raffi3]

Don't understand your reply as does not apply to my question.

Thank you

[diogenes Remembering]

I don't know where you got the idea from that the ingested T3 "sits around" if not used. T3 is continually "turned over" from conversion from T4 to T3, and then onward conversion of T3 to T2. There is no such thing as pooling or immobile T3 in the body.

[Raffi3 in reply to diogenes]

FT3 does not get carried around the body on the proteins . It is there should it be needed hench Free T3. As said Doc said need some FT3. I don't have T4 on liothyronine only.

[diogenes Remembering in reply to Raffi3]

This also isn't so. T3 produced by the thyroid or taken in by the body is straightaway bound onto the binding proteins that circulate through the blood. In the blood 99.8% or so of the T3 is so bound. When the proteins with their T3 load pass a tissue that requires T3, then some T3 is removed from the binding proteins for the tissue's use. The proteins + T3 load then carry on in the circulation, releasing T3 (as FT3) as needed.

[Raffi3 in reply to diogenes]

What I said is what GP told me.

[diogenes Remembering in reply to Raffi3]

Then ignore him/her. He/she doesn't know what they are talking about.

[Raffi3 in reply to diogenes]

Too right! Like one said I needed to put on weight so he increased my liothyronine to do so and I ended up having acute anxiety and a panic attack.

[Raffi3 in reply to diogenes]

I dont have T4 as only on T3 medication ie liothyronine. So why is FT3 blood tested with the TSH. Too much FT3 is spare. Does not get carried around the body on proteins unless needed.

[Batty1 in reply to Raffi3]

You have NO thyroid and your only on T3 and not a combo of T3/T4 ?

You should post your recent lab results with the lab ranges.

[SlowDragon Administrator]

Looking at previous posts you seem to be on T3 only?

Do you have any test results?

Important to test vitamin D,folate, ferritin and B12 at least annually

[Wetsuiter]

if your FT3 is 5 and the upper limit of the range is 6.5, what makes you think it s too much?

[Raffi3 in reply to Wetsuiter]

Don't think it is too much. Am feeling a bit jittery and anxious. Will drop to 50mg and see if helps. GPs don't really know about all this and even said I need to put on weight so increased the T3 to do this. Don't think that was quite right do you?

[BB001]

I think you would find Paul Robinson's book called the thyroid patients manual very useful to help you understand what's going on . He's also written a book titled recovering with T3.

He has a recovering with T3 blog as well which I suggest you start with to see what you think. His blog can be accessed from here

recoveringwitht3.com