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A member asked:
Tsh 2.250 (0.25 - 5.00) ft4 1.77 (0.70 - 1.55) what can cause these results?
A doctor has provided 1 answer
2 things: Hi. Either your thyroid has stone-cold normal function or you're on the right dose of thyroid medication. And for the record, there is no free T4 assay I know of where the upper end of normal is 1.55. Good luck!
Answered 2/15/2016
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