Autoimmune

[Emits]

My sister had just been diagnosed with hypothyroidism too. Does this fact mean that it's likely hashi's that we both have? I mean what are the odds for both of us having it if it's not?

[shaws Administrator]

Being sisters it is possible to have the same type of hypothyroidism. To confirm it is hashimoto's, thyroid antibodies have to be tested - if result is negative she would have 'normal' hypo if blood test results also prove she has hypo (not by the TSH alone).

[Emits in reply to shaws]

Does 42 (<60) mean the its not autoimmune? Or can it still be? It seems like everywhere else the upper limit is 9 or 35...

[shaws Administrator in reply to Emits]

You'd have to give the ranges which are next to the results and they are in brackets usually.

[Emits in reply to shaws]

That is the range less than 60 and the other labs less than 9 or 35 depending on the lab. I'm just worried that the different reference ranges are like the different tsh ranges. That some labs keep the upper limit of the range too high.

[shaws Administrator in reply to Emits]

Emits as I don't know much about antibodies and this post is now 3 days old, I'd repost a new question for answers from those who are more knowledgeable.