Question about rt3: If the range is 10 to 2... - Thyroid UK

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Question about rt3

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If the range is 10 to 24. Your rt3 is 16. What should it be?

Should it be 10? If so shud u take t3 to treat it?

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Jump1
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Clutter profile image
Clutter

Jump1,

Anywhere between 10 -24 is fine. 16 is slightly less than halfway through range so rT3 isn't high and you don't need to switch to T3 only to reduce it.

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Jump1 in reply toClutter

Thanks clutter

LAHs profile image
LAHs

Reverse T3 is a bit like the dumping ground after your body has converted enough T3 from it's store of T4. The excess will go to reverse T3. So basically mid range is perfect. If it was minimal (10) that means that you could probably be converting a bit more T3 from your T4, If is is maximum (20) that means that you are over converting and therefore could reduce your dose or your catalysts for this process.

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Jump1

Not sure what you mean when you say if minimal 10 .....sorry maybe i am just being stupid could you explain that sentence

LAHs profile image
LAHs

Oh, sorry. You quoted the range of reverse T3 (rT3), which is about right (I didn't look up the exact figures). If you are running at the lowest acceptable figure (10) it looks as if your conversion of T4 to T3 is efficient, i.e. most of your T4 is being converted, there is no overproduction. However, if you are not feeling well it could indicate under medication. If you have a lot of rT3, i.e. approaching 20 it means that your conversion is inefficient or it is maxed out, i.e. your body doesn't need anymore T3 and it is getting dumped (as rT3). And again, if you do not feel well it could mean over medication.

Now, for completion, if you have high rT3 but low FreeT3 then I really do not know what is going on - and I am not sure many could explain that phenomena, perhaps a scientist named Gregg Kelly could, maybe he has written a paper on it. It probably depends upon the catalysts present for the T4 to rT3 reaction, or the lack of catalyst (Se) for the T4 to T3 reaction.

Oh and btw, that wasn't a stupid question.

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