Question on determining optimal lab range
Sorry guys, a couple more questions. If most women feel best when their Free T3 is in the upper third of the range, is this determined by subtracting the lower range from the higher range, dividing by three, and adding 2/3 to the lower range? This is taxing my brain! My newest Free T3 is 3.0 with the range being 2.3-4.2. So would this make the optimum 3.56?
Should the Free T4 also be in the upper 1/3 of the range for optimum health? Does the Free T4 result reflect how well Synthroid is working? My newest Free T4 is 1.43 with the range bing 0.61-1.76. Although requested, the lab failed to run the TSH.
I will be seeing a new doctor on Wednesday, hoping that adding T3 and/or adjusting the Synthroid may help my exhaustion and brain fog. What do you all think? I am trying to learn as much as I can. Any and all advice will be greatly appreciated.