Application value of automatic cell washing centrifuge in direct anti-human globulin test
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摘要: 目的探讨自动细胞洗涤离心机在直接抗人球蛋白试验(DAT)中的应用价值。方法随机选取20份血样,同时使用传统手工法(手工组)和自动细胞洗涤离心机(机械组)制备洗涤红细胞,比较2组的洗涤时间、对DAT检测的干扰、上清液微量蛋白和红细胞浓度。结果同时洗涤2个以上标本时,机械组所需时间短于手工组,差异有统计学意义(P<0.05);2种洗涤方法均可避免血浆蛋白对DAT检测的干扰;2组洗涤后上清液微量蛋白含量均较低,差异无统计学意义;但机械组洗涤后红细胞浓度较手工组显著降低,差异有统计学意义(P<0.05)。结论应用自动细胞洗涤离心机制备洗涤红细胞,可提高实验操作效率、减少生物污染,值得在血清学实验室中推广。Abstract: ObjectiveTo explore the application value of automatic cell washing centrifuge in direct antiglobulin test(DAT).MethodsA total of 20 blood samples were randomly selected. Washed red blood cells were prepared by traditional manual method(manual group) and automatic cell washing centrifuge(mechanical group). The washing time, interference to DAT detection, supernatant microprotein and red blood cell concentration were compared between the two groups.ResultsWhen washing more than 2 specimens at the same time, the time required in the mechanical group was shorter than that in the manual group. The difference was statistically significant(P < 0.05). Both washing methods could avoid the interference of plasma proteins on the DAT. The microprotein content in the supernatant was lower, and the difference was not statistically significant. However, the concentration of red blood cells in the mechanical group after washing was lower than that in the manual group, and the difference was statistically significant(P < 0.05).ConclusionThe use of automatic cell washing centrifuge to prepare washed erythrocytes could improve the efficiency of experimental operation and reduce biological pollution. The centrifuge may be worthy of promotion in serology laboratories.
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表 1 2种方法洗涤后上清液微量蛋白和红细胞浓度比较
X±S 组别 例数 上清液微量蛋白含量/(g·L-1) 红细胞浓度/% 手工组 20 0.011±0.004 0.593±0.084 机械组 20 0.008±0.004 0.231±0.062 t 1.892 20.327 -
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