医学
脉搏血氧仪
血红蛋白病
氧-血红蛋白离解曲线
补充氧气
氧气
血红蛋白
急诊科
氧饱和度
离解(化学)
哮喘
氧气疗法
儿科
麻醉
内科学
溶血性贫血
精神科
物理化学
有机化学
化学
作者
Leon Joseph,Inbal Brickner‐Braun,Berry Pinshow,Shmuel Goldberg,Hagit Miskin,Elie Picard
摘要
Abstract Asthma is the most common reason for referral to the emergency department in childhood. In severe attacks, supplemental O 2 is given when oxygen saturation level is <90%. Described herein is the case of a child with persistent low oxygen saturation as measured on pulse oximetry ( S p O 2 ) after full clinical recovery from an asthma attack. Simultaneously, P a O 2 was normal. A diagnosis of abnormal hemoglobin with decreased oxygen affinity (hemoglobin S eattle) was made on hemoglobin electrophoresis and genetic analysis. To ascertain when supplemental oxygen was needed, an oxygen dissociation curve was plotted using the tonometer technique, and it was found that an S p O 2 of 70% is parallel to a P a O 2 of 60 mmHg. Plotting an oxygen dissociation curve is a simple reproducible method to determine when supplemental oxygen is required for a child with a hemoglobinopathy.
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