Question

A 35-year-old woman presents with palpitations, weight loss, and heat intolerance. On examination, she has a diffuse goitre and exophthalmos. Which investigation is most useful to confirm the diagnosis of Graves' disease?

Accepted Answer

TSH receptor antibody (TRAb) test

Answer

Serum T3 and T4 levels

Answer

Thyroid uptake scan

Answer

Anti-thyroid peroxidase (anti-TPO) antibodies

Answer

Serum calcitonin

Practice question

A 35-year-old woman presents with palpitations, weight loss, and heat intolerance. On examination, she has a diffuse goitre and exophthalmos. Which investigation is most useful to confirm the diagnosis of Graves' disease?