Diagnosis of intrauterine fetal growth retardation by prolongation of dehydroepiandrosterone sulfate (DHAS) half-life after DHAS loading.

In the last trimester of pregnancy, a correlation was established between the serum dehydroepiandrosterone sulfate (DHAS) half-life of the mother (n = 40) after DHAS loading (50 mg i.v.) and the birth weight percentile of the newborn.