All three of the above are identical (as far as I'm aware), it's just the naming which has been made unnecessarily complicated.
I noticed that they contradicted themselves in relation to testing Free T3 and/or Total T3 in connection with thyrotoxicosis and Graves' Disease. They said T3 should not be tested earlier in the document then said later it should be.
Lines 534 - 538 reiterates the belief that T3 is bad for the fetal brain because doctors think it reduces the amount of T4 in the fetal brain and hence causes damage.
Anyone worrying about that should read this link - read the text and click on the poster to make it readable :
I want to draw attention to the comments about iodine - not radioactive iodine, just the nutrient iodine.
Do a search in the document for the word iodine where it is not mentioned in connection with the radioactive version.
It suggests that women of reproductive age in the UK may be low in iodine. I suspect that testing iodine is something people with thyroid disease should do at least once, particularly before trying to conceive.
Iodine testing is best done as a non-loading test using urine. The only place I know of that does this version of the test is Genova Diagnostics, and it costs £76 at time of writing.
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