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血浆凝血酶原时间(PT)是外源性凝血途径的筛选性试验指标,也是监测口服抗凝剂用量有效的检测指标。当PT用于监测口服抗凝剂用量时则必须使用INR结果进行比较,否则对照无效。影响PT-INR的因素很多,也导致各实验室测定的结果有较大差异,为保证口服华法林患者的治疗疗效必须准确测
Plasma prothrombin time (PT) is a screening test for extrinsic coagulation pathways and an effective measure of monitoring oral anticoagulant dosage. When the PT is used to monitor the amount of oral anticoagulant, you must use INR results to compare, otherwise the control is invalid. Many factors affect the PT-INR, also led to the results of various laboratory tests are quite different, in order to ensure the efficacy of oral warfarin treatment in patients must be accurate