What Is Hashimoto's?
5. Diagnosis
Doctors who suspect thyroid trouble will recommend a blood test to measure the level of serum thyroid-stimulating hormone. This hormone is elevated in those with hypothyroidism. They also will test for levels of T3 and T4, and the presence of thyroid autoantibodies.
Ultrasound imaging allows a doctor to measure the thyroid and to detect any nodules that might be present. If the thyroid has enlarged dramatically or if there are nodules inside, a doctor may perform a biopsy to test for cancerous cells.
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