Question

A 28-year-old woman presents with tremor, palpitations, weight loss, and heat intolerance. Exam shows diffuse goiter and exophthalmos. TSH is suppressed, and free T4 is elevated. Which antibody test is most specific for the suspected diagnosis?

Accepted Answer

Thyroid-stimulating immunoglobulins (TSI)

Answer

Anti-thyroid peroxidase (anti-TPO) antibodies

Answer

Anti-thyroglobulin antibodies

Answer

Anti-TSH receptor blocking antibodies

Answer

Anti-microsomal antibodies

Practice question

A 28-year-old woman presents with tremor, palpitations, weight loss, and heat intolerance. Exam shows diffuse goiter and exophthalmos. TSH is suppressed, and free T4 is elevated. Which antibody test is most specific for the suspected diagnosis?