2016年病理生理学基础知识点：呼吸衰竭
来源 :中华考试网 2016-08-25
中呼吸衰竭
1、概念：在海平面地区静息时吸入空气的条件下,由于外呼吸功能严重障碍,以致出现动脉血氧分压低于60mmHg，伴或不伴二氧化碳分压高于50mmHg。(呼吸衰竭是呼吸功能不全的严重阶段)
respiratory faliure Is a syndrome in which the respiratory system fails to adequately oxygenate the venous blood with / without retention of carbon dioxide. It is generally defined as a PaO2 value of less than 60 mmHg while breathing air or a PaCO2 of more than 50 mmHg.
2、分型：根据PaCO2是否升高分为低氧血症型(Ⅰ型)和高碳酸血症型(Ⅱ型)