下列哪项处理不利于预防术后肺不张()。
A.增加术后运动与咳嗽
B.术前呼吸锻炼
C.术后腹部切口捆扎腹带
D.术前2周停止吸烟
E.纤维支气管镜吸痰
参考答案:C
低氧与高CO2,哪些不正确()
A.低氧即低氧血症
B.低氧作为普通术语,表示吸入气、肺泡气、血液和组织中氧含量低于正常
C.低氧作为特定术语,表示组织细胞因氧供不足或利用障碍而引起的一系列病理生理变化
D.高CO2是指PaCO2>45mmHg
E.高CO2即高CO2血症
用所给单词的适当形式填空。
1. - _________ they _________ (do) their homework in the classroom?
— Yes, they are.
2. There _________ (be) some people in the park.
3. — How much bread do you want?
— I want two _________ (piece) of bread.
4. I find the girl _________ (dance) in the room now.
5. The women are the _________ (children) teachers.