I received a letter requesting more bloods, one is for, thyroid peroxidase antibody (atpo) and
anti thyroglobulin antibodies
What are the differences and what do they mean?
My endo sent a letter to me, saying that my antibodies taken back in sept 2013 were negative and I didn't need treatment with levothyroxine, so I'm confused... But yet my tsh was 1.25 and ft4 was 15 on levothyroxine.