Normal: Hi. That is all completely normal. It demonstrates why we only use a free T4 instead of a total T4. Your total T4 is slightly "elevated" because of a binding protein in your blood; your free T4 would be within normal limits, if it were checked. Not one single analyte in blood remains the same all the time. There is a RANGE of normal. Labs have variability too. Your labs are normal. Live healthily!
Answered 11/24/2014
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