Hi Caro!
I think it is the same antibody test! http://labtestsonline.org/understanding/analytes/thyroid-antibodies/tab/test
They don’t use it much here. I think the test is expensive and it takes a couple of weeks to get the results back. For me, it was sent to Vancouver and I live in Victoria, on a big island near Vancouver and Seattle in Canada.
Since they don’t advocate for remission here my 3 endos have never given me info about remission. Are they more supportive of remission where you live?
Keep us posted too! Take care of yourself! xoxo