[Assessment of thyroid parameters in aged patients with chronic diseases]

Our results so far show a decrease of the T3 values by approx. 0.2 nmol/l. This decrease can be explained, on the one hand, by a shifting of biologically active T3. On the other hand, there are examinations that cannot prove any decrease of the biologically active, free T3. The explanation is found here by the restricted capacity of the rT3-degrading enzyme. According to this explanation, therapeutical consequences should not be drawn, but are rather dangerous.