Skip Ribbon Commands
Skip to main content


Hyperthyroidism: Overview, Causes, Symptoms, Complications, Treatments and More | Singapore General Hospital

Hyperthyroidism - Diagnosis

​​Hyperthyroidism is diagnosed with blood tests that measure Thyroxine (T4) and Thyroid Stimulating Hormone (TSH). Readings that show high T4 levels and low TSH are signs of hyperthyroidism. Where required, our doctors may prescribe other tests. 

Picture showing thyroid receptor antibody (TRAb) stimulating the thyroid, causing the overproduction of thyroid hormone (T4)