[Current evaluation of the classical Werner test and its correlation with current in vitro E.T.R. technics]

The authors evaluated the current standing of the classical 131I uptake test, together with its subsidiary stimulation and suppression tests, and its correlation to clinical diagnosis and the in vitro ETR (Effective Thyroxine Ratio) technique. In the 349 cases studied, a good correlation was found between the previous diagnosis--made by means of 131I uptake test--and the clinics and symptomatology, and very particularly, the in vitro ETR test. The authors conclude that the combination of both tests is sufficiently reliable for the diagnosis of thyroid dysfunction.