I came to post about this exact subject. My question is, if it surges at all isn’t the person consider a carrier? I have seen something that said  12,000 and up classic, 1,200 and up some locah, 100 carrier. I just requested my son’s labwork from 2 years ago. Everything surged, but not as much as my daughter’s. His 17 ohp surged to 355ng/dl so does that make him a carrier? Also his T4 (thyroxine) was low reference range is 8.8-18.0 and his was 7.3. Shouldn’t they have told me that? So now I’m fearing that he is on his way to having hypothyroid.

 If I can find the graft I saw I will post it, but if anyone else has it please post it. Thanks, Michelle