11.医院感染中最重要的感染源是(      )

A.病原携带者                                                  B.患者自身正常菌群

C.动物感染源                                                  D.已感染的患者

12.临床应用最广、效果最可靠的物理消毒灭菌法是(      )

A.干烤法                                                         B.压力蒸汽灭菌法

C.紫外线消毒法                                               D.煮沸消毒法

13.矫正胎位不正应采取(      )

A.头低足高位                                                  B.膀胱截石位

C.侧卧位                                                         D.膝胸卧位

14.腹膜炎患者常采取半坐卧位，其主要目的是(      )

A.防止呕吐                                                      B.有利于渗出物流入盆腔，使感染局限

C.使膈肌上升，减轻对心肺的压力                   D.减少局部出血

15.呼吸过速是指每分钟呼吸速率多于(      )

A.16次                                                            B.20次

C.24次                                                            D.28次