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目的 :改进动脉血气图 ,使之适用于吸氧患者 ,并观察支气管哮喘急性发作期动脉血气指标在动脉血气图上的表现 ,研究其临床意义。方法 :将动脉血气图横坐标由 PO2 改为 PO2 / Fi O2 ,纵坐标 (PCO2 )标出不同吸氧浓度时 PCO2 理论最大值。观察 5 1例支气管哮喘患者动脉血气指标在血气图上的变化。结果 :1来院时血气指标分区 :单纯通气过度区 (3区 ) 1例 ,通气过度换气损害区 (6区 ) 2 8例 ,通气代偿换气损害区 (4区 ) 13例 ,通气不足换气损害区 (5区 ) 9例。 2 5 1例患者病情严重程度与分区的关系 :3例轻度患者中 1例 3区 ,另 2例 6区 ;2 9例中度患者中 9例 4区 ,另 2 0例 6区 ;14例重度患者中 4例 4区、6例 6区和 4例 5区 ;5例危重患者均在 5区。 3病情缓解时 :轻度患者由 6区→ 3区→ 1区 ,中度患者由 4区→ 6区→ 1区 ,重度和危重患者由 5区→4区→ 6区。 4病情加重时 :由 6区→ 4区→ 5区 ,病情越重 ,越向血气图的左上方移动 (高 CO2 和低 O2 )。结论 :动脉血气图可作为判断病情严重程度的依据之一 ,对治疗方法选择、疗效观察和预后估计有一定的临床意义
OBJECTIVE: To improve arterial blood gas chromatogram and make it suitable for patients with oxygen inhalation, and to observe the performance of arterial blood gas in acute exacerbation of bronchial asthma and to study its clinical significance. METHODS: The abscissa of arterial blood gas diagram was changed from PO2 to PO2 / Fi O2, and the ordinate (PCO2) was used to indicate the maximum theoretical value of PCO2 for different oxygen concentrations. 51 cases of bronchial asthma in patients with arterial blood gas index changes in the blood gas chart. (1) Ventricular hyperventilation zone (zone 6) 28 cases, ventilation compensatory ventilation damage zone (zone 4) 13 cases, lack of ventilation Ventilation damage area (District 5) 9 cases. The relationship between the severity of illness and the subdivision in 1 of 51 patients was as follows: 1 patient in 3 patients with mild disease and 6 patients in 2 patients; 9 patients in 4 patients in 29 moderate patients and 20 patients in patient 6; 14 In 4 cases of severe cases, 4 cases, 6 cases of 6 cases and 4 cases of 5 cases; 5 cases of critically ill patients are in the 5th District. 3 when the disease is relieved: mild patients from 6 districts to 3 districts to 1 district, moderate patients from 4 districts to 6 districts to 1 area, severe and critically ill patients from 5 districts to 4 districts to 6 districts. 4 exacerbations: from 6 districts → 4 districts → 5 District, the more serious the disease, the more the upper left of the blood gas diagram move (high CO2 and low O2). Conclusion: Arterial blood gas diagram can be used as a basis for judging the severity of the disease, and has some clinical significance on the choice of treatment methods, efficacy observation and prognosis