reverse T3 dominance questions

[Guest guest]

I have a date with my endo end of Jan and I want him to test my rT3.

I'm worried the first thing out of his mouth will be...'reverse what!!!'

But if I'm lucky he will actually know what I am talking about but I

want to be well informed. So I've come to the experts.

1. what are the normal ranges for rT3?

2. what is a good T3/rT3 ratio range?

3. is there such thing as free rT3 and total rT3?

4. when fT3 is measured is that only the free unbound T3 or does that

also include rT3.

5. I know that excess rT3 can take up thyroid receptor sites blocking

out T3. I also know that excess estrogen can also take up thyroid

receptor sites blocking out T3 (I would guess that in hyperT it would

be the opposite). What other hormone receptor sites compete with T3?