1 / 3

第三节 影响机体对缺氧 耐受性的因素

第三节 影响机体对缺氧 耐受性的因素. 一、代谢耗氧率 发热，甲亢时，对缺氧耐受性低 体温降低，神经系统抑制时相反 二、机体的代偿能力. 第四节 氧疗与氧中毒. 一、氧疗 低张性缺氧效果最好 其它类型的缺氧，氧疗可增加 血浆内溶解的氧. 二、氧中毒 0.5个大气压以上的氧对细胞有毒 性作用，可引起氧中毒 机制：可能与活性氧有关 肺型氧中毒：咳嗽，呼吸困难

van
Download Presentation

第三节 影响机体对缺氧 耐受性的因素

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. 第三节 影响机体对缺氧 耐受性的因素 • 一、代谢耗氧率 • 发热，甲亢时，对缺氧耐受性低 • 体温降低，神经系统抑制时相反 • 二、机体的代偿能力

  2. 第四节 氧疗与氧中毒 • 一、氧疗 • 低张性缺氧效果最好 • 其它类型的缺氧，氧疗可增加 • 血浆内溶解的氧

  3. 二、氧中毒 • 0.5个大气压以上的氧对细胞有毒 • 性作用，可引起氧中毒 • 机制：可能与活性氧有关 • 肺型氧中毒：咳嗽，呼吸困难 • 脑型氧中毒：视听障碍，恶心， • 抽搐，昏迷等

More Related