A useful document that highlights the need for careful analysis of TFTs putting the emphasis on the relationship between the three hormones as opposed to blindly looking at whether they are within their reference intervals. It's good also to see some attention being paid to the bioactivity of TSH.
I would add that the low TSH, fT3, fT4 syndrome as described in NTIS can occur in people who have no apparent illness. The axis can be broken when there is no obvious cause.
The terminology is confusing, I'm not sure what we can do about it. For example, "Thyroid Stutus" is usually accepted to mean the status of thyroid hormone action, whether the person is clinically hypo or hyper thyroid and not the stutus of the thyroid gland itself.
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