Measurement of the normal range of Thyroid gland & Thyroid stimulating hormones in Iraqi population

Abstract

Three thousands of blood samples were collected by veinpunction from healthy persons of both sex and different ages. The country was divided into three major regions, north (Mousel and Erbil), middle (Baghdad) and south (Basra). The concentration of hormones T3, T4 and TSH under study were determined by imported radioimmunoassay kits in addition to SPSS statically analysis. The country normal range of T4 was (2.2-12.47 μg/dl), since T3 hormone was (0.24 -2.00 ng/ml)and the normal range of TSH was (0.3-4.5μIU/ ml). Our range of hormons results compared with that of forign levels and significant increase in thyroid hormones noted, while the TSH was similar.