血氧饱和度（SaO2）监测在临床急救中被广泛应用。我院儿科为住院的小儿肺炎患者测定血氧饱和度，对早期发现低氧血症，及时施行氧疗起到良好辅助作用，取得较好效果，报道如下。1临床资料1．1观察对象按照《实用儿科学》肺炎的诊断标准，1997－04~199－04住院确诊为肺炎的患儿 Oxygen saturation (SaO2) monitoring is widely used in clinical emergency. Pediatric hospital pediatric pneumonia patients in hospital for the determination of oxygen saturation, early detection of hypoxemia, oxygen administration in time to play a good auxiliary role, and achieved good results, reported as follows. 1 clinical data 1.1 observed in accordance with the "practical pediatric pneumonia diagnostic criteria, 1997-04 ~ 199-04 hospitalized children diagnosed with pneumonia