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支气管哮喘患者发作时,应及时寻找并解除其激发因素。根据哮喘发作的程度(轻、中、重、危重)合理应用支气管解痉剂,消除气道炎症和降低气道反应性,改善过敏状态,纠正缺氧或/和二氧化碳潴留,防治酸硷失衡和电解质紊乱,以及给予支持等治疗。轻度发作患者自觉胸闷、两肺散在哮鸣音,用支气管舒张剂后最大呼气流量(PEF)占预计值70%～80%,动脉血氧分压(PaO_2)和CO_2分压(PaCO_2)正常或偏低。一般去除诱发因素,哮喘可自行缓解;或经支
Bronchial asthma attack, it should promptly find and lift the motivation. According to the degree of asthma attacks (light, moderate, severe, critical) the rational use of bronchial spasm agent to eliminate airway inflammation and reduce airway responsiveness, improve allergic status, correct hypoxia or / and carbon dioxide retention, prevent acid-base imbalance and Electrolyte imbalance, and give support and other treatment. Patients with mild attack had chest tightness, wheezing of both lungs, the maximum expiratory flow (PEF) after bronchodilator accounted for 70% ~ 80% of the predicted value, PaO_2 and PaCO_2 (PaCO_2) Normal or low. Generally remove the predisposing factors, asthma can relieve itself; or by branch