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乙二胺四乙酸二钾(EDTA-K2)是国际血液学标准化委员会建议的血细胞计数抗凝剂，其在应用过程中偶尔会发生EDTA依赖性假性血小板减少症( EDTA-PTCP)。为了防止临床误诊误治，导致不必要的血小板输注，必须对血小板计数进行纠正。目前纠正方法主要有稀释模式法、替代抗凝剂法、微量离心管法、药物稳定法、网织红细胞通道法、血小板计数参考方法等。“,”EDTA-K2 is taken as the proposed anticoagulant in blood count by International Council for Standardization in Hematology ( ICSH ) . However, occasionally EDTA-dependency pseudothrombocytopenia ( EDTA-PTCP) occurs. In order to prevent clinical misdiagnosis,mistherapy and unnecessary platelets trans-fusion,it is necessary to correct the platelet count. At present the main correction methods are dilution model method,alternative anticoagulant method, micro centrifuge tube method, drug stability method, reticulocyte count method,channel PLT reference method etc.