The evolution of thyroid function tests

  • J M Kuyl University of the Free State
Keywords: evolution, thyroid function tests


Thyroid gland disturbances are the second most common endocrine disorder after diabetes mellitus. Given that approximately 200 million people in the world have some form of thyroid disease, it is no wonder that thyroid function tests, i.e. thyrotropin and free thyroxine (T4), currently account for a significant portion of the routine workload of clinical chemistry laboratories. This was not the case more than 100 years ago.

Author Biography

J M Kuyl, University of the Free State
Head of Department Department of Chemical Pathology National Health Laboratory Services Universitas Central Hospital University of the Free State
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