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  1. #1
    Kindra178 is offline Red Diamond level (10,000+ posts)
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    Default Another Thyroid Post Tell Me About T4

    Title says it all. I have been told by at least two gp doctors that I have a perfectly working thyroid. It turns out that my t4 is 0.9, which according to various internet resources is really low, because the normal range starts at 4.5. Is it possible that the lab my doctors use is different, and .9 is normal? On Monday I will have my bloodwork faxed to me, but assuming that is the case, can you tell me what you know about t4? Thanks!

  2. #2
    SnuggleBuggles is offline Black Diamond level (25,000+ posts)
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    All I know is that I am on Armour and it works on both T3 and T4, which my endo says is a good idea. I feel really good on it.

  3. #3
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    wellyes is offline Blue Diamond level (20,000+ posts)
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    Was it total T4 or free T4?


    Total T4 range is 4.5 to 12.5.
    Free T4 range is 0.7 to 2.0.

    My guess is that it was a Free T4 test and you are 'normal'.
    Good luck!
    DD - 8
    DS - 5

  4. #4
    Kindra178 is offline Red Diamond level (10,000+ posts)
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    Quote Originally Posted by wellyes View Post
    Was it total T4 or free T4?


    Total T4 range is 4.5 to 12.5.
    Free T4 range is 0.7 to 2.0.

    My guess is that it was a Free T4 test and you are 'normal'.
    Good luck!
    After I posted I found that as well. It seems really crazy to remove a perfectly working thyroid.

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