A 降低PaCO<img src="https://renminyixue-prod.oss-cn-qingdao.aliyuncs.com/pu/question/d97d0e0e0b6f48f5af4320977180b51f20230526174322.png" />使脑血管舒张,脑血容量增多 B 降低颅内压 C 降低PaCO<img src="https://renminyixue-prod.oss-cn-qingdao.aliyuncs.com/pu/question/d97d0e0e0b6f48f5af4320977180b51f20230526174322.png" />使脑血管收缩,脑血容量减少 D 减少脑血流量 E 增加PaO<img src="https://renminyixue-prod.oss-cn-qingdao.aliyuncs.com/pu/question/d97d0e0e0b6f48f5af4320977180b51f20230526174322.png" />