关于室内质控总胆红素漂移的原因分析及解决办法

Reason analysis and solution method of internal quality total bilirubin drift

目的：研究月配质控血清总胆红素（TBIL）测定值随着时间的推移向下漂移的原因及找出解决的办法。方法：把配制的质控血清分别分装在30支普通透明的子弹头状离心管和30支棕褐色避光的离心管中放冰箱冷冻备用，每天取出一支进行质控检测。结果：普通透明离心管保存的质控血清TBIL测定值逐天明显向下漂移，而避光保存的质控血清其TBIL测定值则基本稳定在一个理想的质控允许范围以内。结论：用棕褐色离心管保存质控血清，可有效防止质控血清TBIL测定值的向下漂移。

Objective：To study the reason and solution of the down drift of total bilirubin serum prepared monthly. Methods：The prepared quality-control serum was distributed into 30 crystal or brown bullet-shaped tubes respectively, and stored at-20℃. Take out a tube every day for test.Results：The test level of quality-control serum preserved in crystal tubes drift down obviously everyday,while that in brown tubes was stable in a desired range. Conclusions：The down-drift of quality-control serum levels could be prevented effectively by preserved in brown tubes.