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A member asked:
Are these results a little bit not normal? tsh: 0.7, ft4: 16.32, ft3: 4.97
2 doctors weighed in across 2 answers
Thyroid tests: The "normal range" differs from lab to lab and depending on the units. These are normal values in the British system, but the normal range for FT4 and FT3 is different in the American system.
Answered 9/27/2014
3.7k views
Depends: Lab reference ranges are set so that a few percent of healthies fall outside on either end. That being said, these are normal for most labs if the units are mcU/mL for TSH and picomoles/L for free T4 and free T3 (liothyronine). If these are the correct units, and your physician isn't concerned, relax.
Answered 9/27/2014
3.7k views
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