A number of conditions causing inadequate entilation(airway obstruction, pneumonia atelectasis, pleural effusion, and hypoentilation due to the pain of abdominal incisions or to abdominal distention limiting diaphragmatic excursion) may exist singly or in
A number of conditions causing inadequate entilation(airway obstruction, pneumonia atelectasis, pleural effusion, and hypoentilation due to the pain of abdominal incisions or to abdominal distention limiting diaphragmatic excursion) may exist singly or in
许多导致通气不足的病变（呼吸道梗阻，肺炎性肺不张，胸腔积液，腹部切口疼痛或者腹胀限制了膈肌的运动等引起的低通气）可以单独存在，也可以合并与其它病变而导致呼吸性酸中毒。