General Consideration Antenatal cardiovascular changes Blood volume increase by 40%-60%0 Peaking at 32-34 weeks the expansion in plasma volume is greater than that expansion of red cell mass Cardiac output Increase by 40%6-50% Peaking at 20-24 weeks
1. Different periods of Female Neonatal period:≤4 weeks childhood: 4 weeks to age of 12 adolescence: menarche age of 12-17 sexual maturity: begain 18. maintains for 30 years Operi-menopausal period: begain 40, maintains for 10-20 years pre-menopause, menopause (last time of menorrhae post-menopause
At the beginning of the 20th century diabetic women suffered from- infetility, and the rare women achieving pregnancy faced a poor prognosis. Maternal death'was a real threat,and perinatal survival a more 40 percent
分句(Clause)是建立在词组基础上的语法单位。 所谓分句就是“主语(Subject)+谓语 (Predicate)”的语法构造。这就是说,并不是 任何一串词组都可以成为分句,只有当这些词 组结合成为“主语+谓语”的结构时,这才算是 分句。比如下面这一连串词组 the tale, three legs in the room并不能说明什么,因为它们没有结成 主谓关系,因而不是分句
