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

Area of Science:

• Endocrinology
• Nuclear Medicine
• Clinical Diagnostics

Background:

• The 131I uptake test is a classical method for assessing thyroid function.
• Thyroid dysfunction diagnosis relies on various clinical and laboratory parameters.
• The Effective Thyroxine Ratio (ETR) test offers an in vitro assessment of thyroid hormone status.

Purpose of the Study:

• To evaluate the diagnostic accuracy of the 131I uptake test, including stimulation and suppression variations.
• To assess the correlation between the 131I uptake test and clinical diagnosis.
• To determine the reliability of combining the 131I uptake test with the in vitro ETR test for diagnosing thyroid dysfunction.

Main Methods:

• Analysis of 349 patient cases.
• Utilized the classical 131I uptake test with stimulation and suppression tests.
• Correlated test results with clinical diagnosis, symptomatology, and the in vitro ETR test.

Main Results:

• A strong correlation was observed between diagnoses made using the 131I uptake test and clinical findings.
• The in vitro ETR test showed a particularly good correlation with the 131I uptake test results.
• The combined approach demonstrated high reliability in diagnosing thyroid dysfunction.

Conclusions:

• The 131I uptake test, when used with its subsidiary tests, aligns well with clinical presentation.
• The in vitro ETR test is a valuable complementary diagnostic tool.
• Combining the 131I uptake test and the ETR test provides a reliable method for diagnosing thyroid dysfunction.