Testing your thyroid function
A blood test can be done to check your thyroid function.
A basic test will check your thyroid hormone levels — this will check whether you have an underactive or overactive thyroid. While a more advanced test will also check for thyroid antibodies, called thyroid peroxidase antibody (TPO) and thyroglobulin antibody (TGAb) — cause autoimmune thyroid diseases.
Understanding thyroid acronyms
When it comes to testing your thyroid, there are lots of different acronyms. This glossary can be helpful in understanding and interpreting your results.
This hormone is produced by the pituitary gland and stimulates the thyroid gland to release T3 and T4.
One of the main hormones that the thyroid produces. T3 stimulates our body cells causing their metabolic processes to happen.
The other main hormone that the thyroid produces. T4 is converted to T3 by deiodinase enzymes.
This is the protein that T3 and T4 is bound to within the bloodstream.
This hormone stimulates the release of TSH. It is released itself from the hypothalamus.
TPO: Thyroid Peroxidase
A type of thyroid antibody.
TPOAb: Anti-thyroid Peroxidase
A thyroid autoimmune disease that results from the abnormal production of TPO antibodies by the immune system.
Another type of thyroid autoimmune disease that results from the abnormal production of TPO antibodies by the immune system.
TRAb: TSH receptor antibodies
A thyroid autoimmune disease caused by the presence of antibodies against the TSH receptor.