A TSH of .88 is within the normal range. Why did you do a thyroid test?
If you have no symptoms of concern then I would think this TSH is fine. IF you have symptoms that are of concern the dr should test FT3 and FT4 as well to be sure thyroid is all well.
Sorry, but TSH is a pituitary hormone that is affected by so many variables that it is totally inadequate as a diagnostic for thyroid. At best it is an indicator to be considered along with more important indicators such as symptoms and also levels of the biologically active thyroid hormones, which are Free T4 and Free T4. TSH cannot be shown to statistically correlate well with FT4 or FT3, much less with symptoms which are the most important indicator. Scientific studies have shown that FT3 correlated best with hypo symptoms, while FT4 and TSH correlated very poorly.
You'd be amazed at how many members we have had with hypo symptoms, yet their doctors told them that their TSH was "normal" and so their symptoms must be due to something else. A good thyroid doctor will treat a hypo patient clinically by testing and adjusting free T3 and Free T4 levels as necessary to relieve symptoms, without being constrained by resultant TSH levels. Symptom relief should be all important, not just test results, and especially not TSH.
If you want to read more about clinical treatment this is a good link.
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