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绝大多数的支气管哮喘发作期间,都会产生程度、性质不同的酸碱失衡(一项重要的病情变化指标),且形成较为一致的变化规律——“3阶段”。“3阶段”的形成及大致规律如下。第1阶段在发作早期,由于喘息刚开始,处于有力阶段,可形成过度通气,致使血中二氧化碳(CO2)相对减少,二氧化碳分压(PaCO2)下降,血pH值上升,表现为“呼吸性碱中毒”。
Most of the bronchial asthma attacks, will produce different degrees of acid-base imbalance (an important indicator of disease changes), and the formation of a more consistent law of change - “3 stages ”. “3 stages ” The formation and general rules are as follows. Stage 1 In the early stage of attack, wheezing has just begun and is in a strong phase, hyperventilation can result, resulting in a relative decrease in blood carbon dioxide (CO2), a decrease in PaCO2, and a rise in blood pH, which is manifested as “respiratory Alkalosis ”.