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围产儿的电解质和酸碱平衡问题已引起许多国内外学者的关注,本文仅就围产儿钠代谢与低钠血症作一扼要叙述。围产儿钠代谢特点正常妊娠宫腔内水的分布包括胎儿、胎盘及羊水三部分。胎儿含水约2500 ml,胎盘约400 ml,羊水700 ml,胎儿水分来源母体,主要通过胎膜及绒毛膜到达胎体。母儿之间,胎儿与羊水之间存在一定的水分交换,但机理未明。由于胎儿生活在羊水环境中,钠的转运根据胎盘及绒毛间隙含
Perinatal electrolyte and acid-base balance has attracted the attention of many scholars at home and abroad, this article only on perinatal sodium metabolism and hyponatremia make a brief account. Sodium metabolism of perinatal characteristics of normal pregnancy intrauterine water distribution, including the fetus, placenta and amniotic fluid in three parts. Fetal water content of about 2500 ml, about 400 ml placenta, amniotic fluid 700 ml, the fetus from the mother of water, mainly through the fetal membranes and chorionic reached the carcass. Between mother and child, fetus and amniotic fluid between the existence of a certain amount of water exchange, but the mechanism is unknown. As the fetus lives in an amniotic fluid environment, sodium transport is based on placental and villous gaps