Urinary and Serum Levels of Testosterone and Aldrostenedione in Pregnant Women as a Possible Method of Fetal Sex Determination
Schultheiss, Gail Luise
MetadataShow full item record
The very sensitive technique of radioimmunoassay was used to determine the levels of androgens, androstenedione and. testosterone, in the serum and urine of thirty-three pregnant women. Samples of both urine (24 hr collection) and whole blood (200c) were obtained at two week intervals from approximately the sixth week of gestation to delivery, allowing a longitudinal study of these hormones throughout pregnancy. In serum, the level of testosterone, after an initial increase, remains relatively constant. The level of androstenedione increases as pregnancy proceeds. These androgens are believed to be important in fetal differentiation. Based on the data obtained for each individual's serum androgen levels, an attempt was made to predict fetal sex.