In a few days I'm seeing an endocrinologist for the first time after blood work showed my TgAB to be >3000 IU/mL (<20) and my TPO antibodies >1000 IU/mL (<35). Since I was actually being tested for other diseases, no other thyroid numbers were checked. Based on those numbers and my medical history, my GP already said it's Hashimoto's. Is there anything I need to make sure to ask, or any blood tests I should request at the appointment? The receptionist already said the doctor will want an ultrasound.