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一般认为,母-胎铁转运是一种单向、主动的过程,与母亲铁状况无关,甚至为了满足胎儿所需,可导致母亲缺铁。近人的工作已对此观点提出质疑。作者在印度某医学院儿科随机选择贫血产妇30例,内13例血红蛋白(Hb)<86g/l,称为Ⅰ组;另17例Hb为86-109g/l,称为Ⅱ组。对照组(即Ⅲ组)由21例无贫血(Hb>110g/l)产妇组成。每例所生新生儿均为单胎、活产,胎龄37-41周,各组之出生体重均值相当。凡有早产、产前出血、妊娠毒血症、血型不合,及患可能影响胎儿生长之全身疾病的产妇已予排除。于第一产程时取母亲静脉血;第二产程后从脐带之胎盘端抽取(勿挤、勒)脐血标本。Hb用氰化高
It is generally believed that mother-child tire transport is a one-way, proactive process that has nothing to do with the mother’s condition of the iron and may even cause iron deficiency in the mother, in order to meet the fetus’s needs. Recent work has challenged this view. The author of a medical school in India, a random selection of anemia, 30 cases of anemia, 13 cases of hemoglobin (Hb) <86g / l, called Ⅰ group; the other 17 cases of Hb 86-109g / l, called Ⅱ group. The control group (group III) consisted of 21 non-anemic (Hb> 110 g / l) mothers. Neonates born in each case are singletons, live births, gestational age 37-41 weeks, the average birth weight of each group is quite. All mothers with preterm birth, prenatal bleeding, gestational toxemia, blood group incompatibility, and generalized disease that may affect fetal growth have been excluded. In the first stage of labor take the mother’s venous blood; after the second stage of labor from the placenta of the umbilical cord to draw (do not squeeze, Le) cord blood samples. Hb cyanide high