I was last year on levo, my free t4 was 15 10-24
Now on t3 only
Free t4 now 3
still waiting for a understanding on trh test not tsh.. Saw my endo today and he does not think I've got under active thyroid, but yet if I stop the t3, like he asked me, my symptoms returned, I'm awaiting results without t3 in my system.
I asked if I wasn't taking levo and I have under active thyroid, wouldn't my ft4 be low? I also asked if I was a healthy thyroid patient and taking levo wouldn't my ft4 be on the higher if not over range?
He said, no the reason your ft4 is low is because the t3 is suppressing your ft4 and he said, if someone with a healthy thyroid and taking 150mcg of levo like I was, wouldn't have a high ft4..
My tsh at the time was 1.13 on levo, ft4 15 as above.
Now on t3
Last test was
Tsh 2.53. 0.27-4.2
Ft4 3. 10-24
Ft3 3.9 2.8- 7.1
Can some one explain ft4 results on someone on levo, a healthy patient and a patient on t3 only
Many thanks for reading.