Re: Help with Lab Levels
Third Generation assays are more sensitive than the previously used second generation assay. It helps to distinguish between, say, a mildly suppressed TSH and a severely suppressed TSH, which, of course, can determine how hyper the patient is (assuming he is hyper, and not deliberately suppressing the TSH for other reasons). It can be used to monitor deliberately suppressive therapies.
It's just a very sensitive test for TSH - and is based on the (what I believe to be facetious) notion that the TSH is the "best" indicator of thyroid function.
I used to do thyroid tests in my pre "got-so-sick-I-couldn't-work-anymore" days. Ironically, I never did any tests on myself. One day, just before I quit working due to profound disability, (mis-diagnosed, of course), I was doing anti-thyroid antibodies and needed another specimen to use as a control I started to ask a co-worker if she would draw my blood, so I could use it. I was so sick even then, and curious, of course, if that was my problem. But, not wanting to bother her, I used a sample that was in another rack. I've often thought back to that moment, and wondered what my life would have been like had I done that test on myself (which I now know would have been positive). I might have saved myself 16 years of profound suffering....
Are you still having hypo symptoms?