Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/134241
Title: Serum progesterone in normal pregnancy. Studies in an Asian population
Authors: Teoh, E.S.
Dawood, M.Y.
Ratnam, S.S. 
Issue Date: 1973
Source: Teoh, E.S., Dawood, M.Y., Ratnam, S.S. (1973). Serum progesterone in normal pregnancy. Studies in an Asian population. Australian and New Zealand Journal of Obstetrics and Gynaecology 13 (4) : 198-201. ScholarBank@NUS Repository.
Abstract: Progesterone was measured in 232 normal pregnancy sera by a competitive protein binding assay. The mean serum progesterone concentration increased gradually from 15.1 ng/ml at 6 wk of gestation to 22.5 ng/ml at 8 wk, dipped slightly to 18.8 ng/ml at the ninth wk and then rose steeply during the second and third trimesters to reach 180.5 ng/ml at term. There was a 5.5 fold difference between the lowest and highest concentrations of serum progesterone for any period of gestation. In 5 patients investigated for diurnal changes there were small, random fluctuations in the serum concentrations. The mean umbilical venous serum progesterone concentration in 10 babies was 4.5 times higher than the corresponding maternal venous concentration.
Source Title: Australian and New Zealand Journal of Obstetrics and Gynaecology
URI: http://scholarbank.nus.edu.sg/handle/10635/134241
ISSN: 00048666
Appears in Collections:Staff Publications

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