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19周头围多少正常值

更新时间: 2020-11-04 00:00:00     

怀孕19周胎儿的头围约为162mm,但也因人而异,在小范围内波动也是正常的。

头围(headcircumference)是指从眉间点(g)为起点,经枕后点(op)至起点的围长。头围反应脑、颅骨的发育,在2岁时测量最有意义,头围过大常见于脑积水、佝偻病等疾病。

关键词: 多少 正常值

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