吗啡的镇痛作用机制是()
A.抑制中枢PG的合成
B.抑制外周PG的合成
C.阻断中枢的阿片受体
D.激动中枢的阿片受体
E.减少致痛因子的产生
参考答案:D
你能找出下列句中的错误吗?选出来并改一改。
( ) 1. Stay in bed at a few days. _______________
A B C D
( ) 2. Lisa have a fever. _______________
( ) 3. Don't laugh at I. _______________
( ) 4. This is a old man. _______________
( ) 5. The girl name is Alice. _______________
( ) 6. It is I coat. _______________
( ) 7. mary is a beautiful girl. _______________
( ) 8. Wang Li is a engineer. ________________
患者男性,35岁。胸部车祸外伤后左侧第4~7肋骨骨折,左侧颈、肩、胸部有大量皮下气肿。呼吸困难,气管向右侧移位。
术后第4天,胸腔引流瓶中水柱停止波动,护士判断其原因是()
A.肺已重新扩张
B.肺不张
C.引流管阻塞
D.引流管打折
E.引流管脱出