全国2012年7月自考护理学基础试题_第4页

16.原发性失眠的主要原因是(      )

A.精神沮丧                                                      B.环境变化

C.疼痛                                                             D.呕吐

17.口腔厌氧菌感染时，漱口液首选(      )

A.2%～3%硼酸                                                B.1%～4%碳酸氢钠

C.1%～3%过氧化氢                                         D.0.08%甲硝唑

18.导致压疮最主要的力学因素是(      )

A.水平压力                                                      B.垂直压力

C.摩擦力                                                         D.剪切力

19.肥胖指人体体重指数超过(      )

A.20                                                                B.25

C.30                                                                D.35

20.潜血试验饮食可以选用的食物是(      )

A.鸡蛋                                                             B.各种肉类

C.动物血                                                         D.各种蔬菜