第24题: [单项选择]患者女,40岁。颅脑手术后3天,如需更换卧位,错误的是 A. 先换药,再翻身 B. 先将导管安置妥当再翻身 C. 两人协助患者翻身 D. 卧于患侧 E. 注意节力原则 参考答案:D 答案解析:解析:颅脑术后患者,头部转动过于剧烈可引起脑疝,导致突然死亡,因此,一般只卧于健侧或平卧。
第32题: [单项选择]只有当冠状动脉狭窄(直径)到一定程度时,邻近的冠状动脉与狭窄的冠状动脉之间才有侧支循环形成,其狭窄程度应大于() A. 25% B. 50% C. 75% D. 90% E. 100% 参考答案:C 答案解析:只有当冠状动脉有75%以上的狭窄(直径)时,邻近的冠状动脉与狭窄的冠状动脉之间才有侧支循环形成。冠心病患者临床症状的严重性不仅取决于冠状动脉的狭窄程度,也与侧支循环的存在与否及其数量的多少有关。
第35题: [单项选择]Questions 9 to 12 are based on the conversation you have just heard. A. A class presentation they’re preparing. B. A television program the man is watching. C. Visiting a close friend of theirs. D. Studying for a test. 参考答案:D 答案解析:[解析] 9-12 W: Hi, Kaven. Your roommate told me that I could find you in the TV lounge. What are yo