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正常妇女血清含锌量为0.09～0.11毫克%。怀孕后血清锌呈进行性降低,足月达最低值,为0.055～.0 48毫克%。国外医学研究证明,母体缺锌除可致流产、胎儿畸形、影响胎儿生长发育外,分娩亦可发生异常,常伴有无张性产后出血。给予锌治疗后,产时出血、宫缩乏力有明显减少。近来国内的一些研究表明,正常孕妇在怀孕后32周内,血清锌含量随孕周增加而下降,另外畸胎儿母体血清锌含量明显低于正常产妇。由此可见,妇女确有必要在孕期增加锌的摄入
Normal women serum zinc content of 0.09 ~ 0.11 mg%. Serum zinc was decreased progressively after pregnancy, the lowest value of full-term, 0.055 ~ .0 48 mg%. Foreign medical research shows that in addition to maternal zinc deficiency can cause miscarriage, fetal malformations, affecting fetal growth and development, childbirth may also occur anomalies, often accompanied by atelectasis postpartum hemorrhage. Give zinc treatment, intrapartum bleeding, uterine inertia significantly reduced. Recently, some domestic studies show that normal pregnant women in the 32 weeks after pregnancy, serum zinc levels decreased with increasing gestational age, the other teratogenic mother’s serum zinc levels were significantly lower than normal mothers. This shows that it is indeed necessary for women to increase zinc intake during pregnancy