And the rest, either they don't follow up or I just don't hear form them again
So to totally rule out low thyroid function, ask and
insist for Free T3 (ft3), Free T4 (ft4) and
Reverse T3 (rt3)
need all 3 and I'm not sure if OHIP covers the rt3. You may have to pay extra.
You can test TSH as much as you want, but when the "normal" levels of circulating thyroid hormones in the serum are not biologically active in the cells, your thyroid function is LOW!