血液标本放置时间对血液常规检测的影响

目的]研究血液标本放置时间对血液常规检测结果的影响及如何保存血液标本可使血液标本的常规检测结果更为稳定。方法]使用全自动血细胞分析仪对50例体检人员的血液标本进行分时段检测,记录其常规结果并分析比较。结果]在室温下放置6 h测定的数据无显著差异,结果在质控范围内。标本置于4℃低温保存时,淋巴细胞比例(LYM%)和血小板(PLT)的变化虽有统计学意义,其变异均小于5%的偏差,不会对临床检验结果产生影响,24 h内结果无明显变化,白细胞虽有逐渐增高的趋势,但无显著性差异。

Effects of Blood Sample Standing Time on Blood Routine

Objective] To study effects of blood sample standing time on blood routine test and how to storing blood sample to keep them remain stable.Method] Blood sample of 50 physical examination personnel were assayed over time by automated hematology analyzer and then the data were analyzed and compared by using statistical method.Result] There was no significant difference of data collected from test at room temperature for 6 h and they all belong to the controlling scope.The specimens placed at 4 ℃ for preservation,although the variation of although the difference in two parameters between lymphocyte proportion（LYM%）and platelet LYM% and PLT have statistical significance,they have no effects on clinical trial for the deviation less than 5%.Leukocyte showed increasing trend with no significant difference.