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    Typical Test Reference Ranges - UK

    Typical Thyroid Serum Reference Ranges in adults are:

    TSH 0.4 – 4.5 mU/L

    FT4 9.0 – 25 pmol/L
    TT4 60 – 160 nmol/L

    FT3 3.5 – 7.8 nmol/L
    TT3 1.2 – 2.6 nmol/L


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    Results are based on findings in the UK and guidelines issued by British Thyroid Association



    Source - The box above shows an extract from BTA guidlines which were published in 2006.

    You can view the reference document at

    http://www.british-thyroid-association.org/info-for-patients/Docs/TFT_guideline_final_version_July_2006.pdf

    Page - 56

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    Re: Typical Test Reference Ranges - UK

    That's similar to US labs on TSH but some have up to 6.0 as the high-normal cut off here.
    My result that diagnosed hypothyroidism was: TSH @ "8.3" and the lab had 0.4 to 4.8 as the normal value.
    I'm seeing more labs here going to 4.5 as high-normal and is a positive development because mildly elevated TSH can point to thyroid autoimmunity and prompt Docs to test patients for thyroid antibodies. My TPO and TG antibodies were both positive but my T4 and T3 were only below mid-range and not flagged low. Despite this my symptoms were significant at that level of TSH.
    Very few labs in the US have revised their lab range for TSH as recommended back in 2002 by the AACE (0.3 to 3.0) but that other endocrine societies differ with.

    "The Endocrine Society (TES), cosponsored a Consensus Development Conference which was held September 2002. ...
    The report maintains that the upper limit of TSH should remain at 4.5 mIU/L, rather than 3.0-3.5 as some other organizations have suggested. ...
    The AACE Clinical Practice Guidelines for the Evaluation and Treatment of Hyperthyroidism and Hypothyroidism 2002 Update, as outlined below, differ in several areas to the conference recommendations.
    AACE used an upper limit of normal for TSH of 3.0mIU/L established in a population of patients carefully screened for thyroid disease by the National Academy of Biochemistry in 2002."


    LINK>> http://www.aace.com/pub/positionstat...ubclinical.php
    (Avatar pic is of me & wife, 2008)

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    Re: Typical Test Reference Ranges - UK

    British Thyroid Foundation (BFT) has decided that patients with a TSH of up to 10 may not need treatment which is absolutely shocking

    I just dont understand who makes these kind of decisions?

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    Might be of interest to some people


 

 

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