Hyperthyroidism Workup
Approach Considerations The most reliable screening measure of thyroid function is TSH level. TSH levels usually are suppressed to immeasurable levels (< 0.05 Â IU/mL) in thyrotoxicosis. Third-generation TSH assays are recommended for screening purposes. The most specific autoantibody test for autoimmune thyroiditis is an enzyme-linked immunosorbent assay (ELISA) test for anti-TPO antibody. Hyperthyroidism in older […]