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根据80例儿科急救病人的脉搏-血氧饱和度(SPO_2)测定及毛细血管动脉化血气分析(包括pH、PαO_2、SαO_2)结果,以及氧离曲线特点,分别于SPO_290%,PαO_27.98kPα(60mmHg)以上和以下,各作一回归方程,SPO_2>90%、<100%时PαO_2为(?)=5.5X-444((?)=0.966);SPO_2<89%、>50%时PαO_2为(?)=0.8X-18((?)=0.975),以求取SPO_2相应的PαO_2值.这对于立即判断患儿的缺氧程度及氧合情况具有实用价值.同时对SαO_2与SPO_2的相关性,PαO_2与SPO_2之间的关系,pH 值对SPO_2值的影响等作了探讨.80例的临床应用与监测表明,能早期发现低氧血症;能帮助调整CPAP 压力及呼吸器各项参数,以适应病人需要;能帮助了解张力气胸闭式引流后肺的复张情况及缺氧减轻程度;能提高支气管镜检查及取异物时的安全性.另外,还对氧饱和度仪使用中的局限性作了说明.
According to the results of pulse-oxygen saturation (SPO_2) and arterial blood gas analysis (including pH, PαO_2, SαO_2) and oxygen dissociation curves of 80 pediatric emergency patients, SPO_290%, PαO27.98kPα ()) = 5.5X-444 (?) = 0.966) at SPO_2 <89% and> 50% when SPO_2> 90% ?) = 0.8X-18 ((?) = 0.975), in order to obtain SPO_2 corresponding PαO_2 value, which is of immediate value to determine the degree of hypoxia and oxygenation in children with practical value.At the same time SαO_2 and SPO_2 , The relationship between PαO_2 and SPO_2, the effect of pH value on the SPO_2 value were discussed.80 cases of clinical application and monitoring showed that early detection of hypoxemia; CPAP can help adjust the pressure and respirator parameters, In order to meet the needs of patients; can help to understand the tension of pneumothorax after closed drainage of lung tension and reduce the degree of hypoxemia; can improve the safety of bronchoscopy and foreign bodies to take. In addition, the oxygen saturation meter is also used in the limitations Sex made a description.