6.属于宫缩时胎头受压、脑血流量一时性减少的胎心率变化是

A.加速                                                        B.早期减速

C.变异减速                                                 D.晚期减速

7.妊娠期高血压疾病患者，左侧卧位24小时可使舒张压降低

A.5mmHg                                                    B.8mmHg

C.10mmHg                                                  D.12mmHg

8.妊娠期高血压疾病的基本病理生理变化是

A.全身各组织器官缺血缺氧                         B.血管通透性增加

C.全身小动脉痉挛                                       D.血管内皮细胞损伤

9.可以导致羊水过少的胎儿畸形是

A.先天肾缺如                                              B.无脑儿

C.脊柱裂                                                     D.脑膨出

10.不属于前置胎盘高危因素的是

A.多次刮宫                                                 B.多次分娩

C.子宫手术史                                              D.高血压

11.胎儿生长受限最常见的因素是

A.孕妇因素                                                 B.胎儿因素

C.胎盘及脐带因素                                       D.子宫因素

12.确诊前置胎盘安全有效的首选方法是

A.B型超声                                                  B.阴道检查

C.妊娠试验                                                 D.腹部平片

13.妊娠合并糖尿病孕妇胰岛素用量高峰是在妊娠

A.20～24W                                                  B.24～28W

C.28～32W                                                  D.32～33W

14.输卵管妊娠时最常发生的部位是

A.间质部                                                     B.峡部

C.壶腹部                                                     D.伞部

15.妊娠合并糖尿病的主要治疗药物是

A.胰岛素                                                     B.消渴丸

C.优降糖                                                     D.降糖灵