Re: Question about Test for Hashimotos
You mention a lot of testing that would be out of the norm for Hashimoto's. The usual ones are the two blood tests for antibodies, TPO and Tg ABs. It would be very unusual to have any other tests to confirm a diagnosis of Hashi's.
If you have nodules or goiter, those would be a good reason for an ultrasound or nuclear scan. If you have nodules over 1 cm in size, that would be a good reason for fine needle biopsy. FNB would also confirm Hashi's; but is rarely done just for that purpose and is discovered by FNB only coincidently upon biopsy of nodules.
If you don't have large nodules, it's overwhelmingly improbable that you have cancer, so you don't have to worry about the uptake scan.
Also, your mother would not have taken radioactive iodine for Hashimoto's. She must have had Graves' disease, which causes hyperthyroidism. Hashi's is the opposite end of the autoimmune spectrum, and it causes hypothyroidism.
Sooo... If you want to provide more details about the tests you've had so far, your symptoms, whether you have goiter or nodules, exactly what tests are being proposed and why, etc., we'll try to help more.