Local reference ranges of thyroid hormones in Sudanese normal subjects using RIA

The current study aimed to establish a local reference range of thyroid related hormones using Radio-immunoassay [RIA] in healthy adults Sudanese volunteers. Serum levels of thyroxine [T4], triiodothyronine [T3] and thyroid-stimulating hormone [TSH], were measured in 40 healthy subjects. The reference range of thyroid related hormones level [mean +/- 2SD] was found to be as follows: T3 =1.38 +/- 2 [0.5] n mole/ L, T4= 132.5 +/- [44.0] nmol/L and TSH= [mean +/- SD] 1.20 +/- 0.82 mU/L. The results showed that no correlation was found between thyroid related hormones versus body height, and weight. A local reference range of thyroid related hormones was established and could be used instead of those were in use before