is there a approximate guess by how much blood FT4 levels increase after taking T4/at how much percent they peak ?
I took my T4 before blood test by mistake but want to decide if I add in T3 or increase T4. Steel cold hands and low body temperature. Doc says all ok Labs are:
FT4 21 (11-25)
FT3 3.67 (3.01-6.16)