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孕妇后期腹围多少正常

更新时间: 2020-11-05 00:00:00     

腹围指的是腹部的围度尺寸,孕妇从第20周开始的每次产检都需要测量腹围,既可躺着也可站立,用软皮尺测量,以肚脐为准,水平绕腹一周,测得数值即为腹围。通过测量腹围,了解腹围的增长情况,再结合宫高绘制妊娠图曲线图,能了解胎儿的发育状况。

正常来说,腹围每周平均增长0.85cm,20周以前腹围增长不稳定,20~24周时增长最快,为每周增长1.5cm;孕24~34周后,腹围增长速度减慢,增长为0.26cm。如果以妊娠16周测量的腹围为基数,到足月,平均增长值为21cm。

关键词: 孕妇 后期 多少 正常

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