目的 探讨热性惊厥患儿血清电解质和血糖的变化及其临床意义。 方法 选取2009 年6月－2010 年12月儿科住院的呼吸道感染并发热性惊厥患儿38例和呼吸道感染无惊厥患儿42例，分别作为观察组和对照组，测定和比较两组患儿血清电解质和血糖值。 结果 观察组血清钠离子浓度为（133.05 ± 1.74）mmol/L、氯离子浓度为（100.37 ± 1.79）mmol/L；对照组血清钠离子浓度为（142.19 ± 1.85）mmol/L、氯离子浓度为（104.57 ± 1.55）mmol/L，差异均有统计学意义（P＜0.01）；观察组和对照组血糖浓度依次为（6.93 ± 0.87）、（5.12 ± 0.55）mmol/L，差异有统计学意义（P＜0.01）。观察组在治疗后的血清钠离子、氯离子浓度分别为（140.89 ± 2.68）、（103.29 ± 1.94）mmol/L，均高于发生惊厥时的浓度（P＜0.01）；观察组在治疗后的血糖浓度为（5.31 ± 0.68）mmol/L，明显低于发生惊厥时，差异有统计学意义（P＜0.01）。 结论 婴幼儿发生热性惊厥时存在血钠、血氯水平降低和血糖升高，在热性惊厥患儿的治疗中应纠正血钠水平和高血糖。Objective To explore the clinical significance of the changes in serum electrolytes and blood glucose in the children with febrile convulsion. Methods Thirty-eight children with respiratory infection combined with febrile convulsion and 42 children with single respiratory infection diagnosed between June 2009 and December 2010 were selected as the observation group and control group, respectively. Serum electrolytes and blood glucose concentration were assayed and compared between the two groups. Results The concentrations of serum sodium and chloride were (133.05 ± 1.74) mmol/L and (100.37 ± 1.79) mmol/L in the observation group, while (142.19 ± 1.85) and (104.57 ± 1.55) mmol/L in the control group; the differences between the two groups were significant (Plt;0.01). The concentrations of blood glucose were (6.93 ± 0.87) mmol/L in the observation group and (5.12 ± 0.55)mmol/L in the control group; the difference was significant (Plt;0.01). After the treatment, the serum concentrations of sodium and chloride were (140.89 ± 2.68) and (103.29 ± 1.94)mmol/L in the observation group, which were higher than those before treatment (Plt;0.01). After treatment, the blood glucose concentration was (5.31 ± 0.68）mmol/L in the observation group, which was lower than that before the treatment (Plt;0.01). Conclusion Hyponatremia, low serum chlorine and hyperglycemia occurre in the febrile convulsion in children, which should be corrected in the treatment of febrile convulsion.