Guest guest Posted January 9, 2007 Report Share Posted January 9, 2007 See this link for more info on which blood tests are the best to assess thyroid function. The reference ranges listed, however, are for adults. http://www.drrind.com/thyroidscale.asp Jen In a message dated 1/9/2007 1:00:30 AM Eastern Standard Time, mb12 valtrex writes: We had two separate thyroid labs done because the lab messed up anddidn't get everything the first time. Here is the data from the firstlab:Thyroxine (T4): 7.9, ref range 4.5 - 12.0T3 Uptake: 26, ref range 23 - 34Free Thyroxine Index: 2.1, ref range 1.2 - 4.9Here is data from the second lab, done a couple months later:Thyroxine (T4) Free, Direct: 1.08, ref range 0.90 - 1.59TSH: 0.890, ref range 0.550 - 7.100Not sure how to read these results. Does T3 Uptake mean plain old T3,or Free T3? The ref ranges look different for Free T4 on the firstlab versus the second lab, and his Free T4 result from the second labis MUCH lower than on the first lab, why would this be? Unless "FreeDirect T4" is something different than "Free T4"? Any helpinterpreting all this would be much appreciated. My doctor said itlooked fine but now I'm starting to second-guess.Thanks, Quote Link to comment Share on other sites More sharing options...
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