通过对29例患儿血糖、血乳酸及碳酸氢盐检测，结合危重评分，结果发现观察组血糖及血乳酸明显高于对照组（P＜0.01），并与危重度轻重相一致.提出在抢救危重病儿时，除了针对致病因子外，更应注意了解机体内环境的状态，避免医源性致病的影响. Blood glucose, blood lactic acid and bicarbonate were detected in 29 children, combined with the critical score, the results showed that the blood glucose and blood lactate in the observation group was significantly higher than that in the control group (P <0.01), and was consistent with the severity of the severity. Critical illness sick child, in addition to the pathogenic factors, but also should pay attention to understand the state of the body’s environment, to avoid the impact of iatrogenic pathogenic.