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AMNIOTIC FLUID TESTOSTERONE AND FETAL SEX DETERMINATION IN THE FIRST HALF OF PREGNANCY
Article first published online: 28 JUN 2008
DOI: 10.1111/j.1471-0528.1977.tb12687.x
Issue
1471-0528/asset/cover.gif?v=1&s=b4e1d96c46e18c61210d584b63c13ee375cf562b "BJOG: An International Journal of Obstetrics & Gynaecology")
BJOG: An International Journal of Obstetrics & Gynaecology
Volume 84, Issue 9, pages 714–716, September 1977
Additional Information
How to Cite
Zondek, T., Mansfield, M. D. and Zondek, L. H. (1977), AMNIOTIC FLUID TESTOSTERONE AND FETAL SEX DETERMINATION IN THE FIRST HALF OF PREGNANCY. BJOG: An International Journal of Obstetrics & Gynaecology, 84: 714–716. doi: 10.1111/j.1471-0528.1977.tb12687.x
Publication History
- Issue published online: 28 JUN 2008
- Article first published online: 28 JUN 2008
- Abstract
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Summary
The concentration of freely extractable testosterone in amniotic fluid was measured in 54 patients whose gestational ages ranged from 10 to 20 weeks; 31 of the fetuses were male and 23 were female. The mean amniotic fluid testosterone concentration was significantly higher with a male fetus than with a female fetus. On only 7 out of 31 occasions was the presence of a male fetus associated with amniotic fluid testosterone values below 100 pg/ml, whereas the values associated with a female fetus were never higher than 90 pg/ml. After 14 weeks gestation no amniotic fluid testosterone level was lower than 120 pg/ml in the presence of a male fetus.