目的 研究四季温度变化对儿童血清钾的影响,提高检验质量.方法 回顾性分析2010年2月至2012年2月之间,门诊和住院儿童的血清钾浓度.用促凝管分离患者血清,每月检测样本数为2 012～2 867份(平均2 410份/月).结果 新生儿血钾浓度受季节性温度变化影响最大;冬季随着温度降低,每月高血钾样本的比例随之升高;而夏季温度上升,每月高血钾样本的比例随之降低.结论 分析结果提示血液标本暴露在不同的环境温度下,会明显影响血清钾的检测结果.严格按照操作规程进行操作,可以有效降低假性高血钾出现的概率.%Objective To investigate the relation between seasonal temperature change and serum potassium concentrations in children samples,and to improve the laboratory test quality .Methods Potassium concentrations were estimated on outpatient and inpatient samples taken over a two-year period using serum obtained from gel separator samples .The number of samples analysed from biochemical tests during each month varied from 2 012 to 2 867 (mean of 2 410 samples per month) .Results It was most profoundly affects measured neonatal serum potassium concentrations by seasonal temperature variations .As the temperature fell in winter,the mean monthly proportion of abnormal serum potassium concentration rose in samples,with the inverse occurring during the warmer summer months .Conclusion These results indicate that exposure of the samples to variations in ambient temperature during their transport to the laboratory profoundly affects measured serum potassium concentrations .Strictly according to the procedures,it can effectively reduce the probability of pseudohyperkalaemia .
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