结论:随着孕周增加,母体缺铁状态逐渐表现出来,实验室检测母体内血红蛋白和红细胞压积随着孕期增加而下降。

• CONCLUSION: With the increase of pregnant time, Lack of iron in pregnant woman puts up gradually; Haenoglobin( Hb) and Hematocrit( HCT) in pregnant woman descend with the increase of pregnant time through laboratory inspection.