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The Distribution of Water and Electrolytes in the Fetus, Placenta and Mother at the End of Pregnancy and After Labour at Term
Author(s) -
Lander Cecilie,
Khoo S. K.,
Mackay E. V.,
Gaffney T.
Publication year - 1971
Publication title -
australian and new zealand journal of obstetrics and gynaecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.734
H-Index - 65
eISSN - 1479-828X
pISSN - 0004-8666
DOI - 10.1111/j.1479-828x.1971.tb00456.x
Subject(s) - placenta , fetus , amniotic fluid , caesarean section , medicine , venous blood , pregnancy , obstetrics , electrolyte , fetal circulation , urine , cord , elective caesarean section , gestational age , cord blood , endocrinology , chemistry , biology , surgery , genetics , electrode
Summary: A study of the composition of water and electrolytes in the fetal‐placental‐maternal system is presented. Fifteen patients of gestational age 38–40 weeks were investigated either before labour (elective Caesarean section (4 patients)) or after labour (11 patients). The parameters studied comprised the osmolality and electrolytes of maternal venous blood and urine, placental and cord arterial and venous blood, fetal urine, and amniotic fluid, together with the water and electrolyte content of uterine muscle, placenta and cord. The main effect of labour was a fall in the tissue electrolyte levels without a corresponding change in body fluids.