Hyperthyroxinaemia

Keywords: Hyperthyroxinaemia (euthyroid)

Causes

Appropriate Tests

 

If the free thyroxine index is used in the initial assessment of thyroid function, some euthyroid patients show increased levels however Thyroid stimulating hormone and Free T4 are normal. If the patient is clinically euthyroid, the raised free thyroxine index is of no clinical significance.

Hereditary excess of TBG

 

Familial dysalbuminaemic hyperthyroxinaemia

 

Familial prealbumin hyperthyroxinaemia