Objective:To investigate the effect of heparin on fibrinogen detection by Clauss method.Methods:A normal plasma pool(NPP)of 20 healthy people was prepared with 3.2%sodium citrate anticoagulant.For experimental group 1...Objective:To investigate the effect of heparin on fibrinogen detection by Clauss method.Methods:A normal plasma pool(NPP)of 20 healthy people was prepared with 3.2%sodium citrate anticoagulant.For experimental group 1,samples containing different concentrations of heparin were prepared.For experimental group 2,samples of experimental group 1 were diluted twice.For experimental group 3,samples of experimental group 1 were diluted 4 times.For the control group,samples of normal saline with the same volume as heparin in experimental group 1 were prepared.The fibrinogen contents of experimental group 1,experimental group 2,experimental group 3,and control group were detected by Clauss method and prothrombin time(PT)-derived method,and the fibrinogen detection results of different groups were analyzed.Results:The trend of fibrinogen detected by Clauss method and PT-derived method in experimental group 1 was different;there was significant difference between the results of experimental group 1 and the control group(P<0.05);there was no significant difference between the results of experimental group 2 and the control group(P>0.05);there was no significant difference between the results of experimental group 3 and the control group(P>0.05);there was no significant difference between the results of experimental group 2 and experimental group 3(P>0.05);the relative deviation between experimental group 1 and the control group was higher in high-concentration heparin sample.Conclusion:Heparin affects fibrinogen detection by Clauss method,and the effect can be reduced by sample dilution.展开更多
目的对Sysmex CA1500全自动血凝仪纤维蛋白原测定方法 Von Clauss法和PT-der法的应用进行比较评价。方法对门诊及住院患者167例标本同时用Von Clauss法和PT-der法测定,将结果按PT-der法测定的纤维蛋白原(FIB)含量分为3个水平组进行比较...目的对Sysmex CA1500全自动血凝仪纤维蛋白原测定方法 Von Clauss法和PT-der法的应用进行比较评价。方法对门诊及住院患者167例标本同时用Von Clauss法和PT-der法测定,将结果按PT-der法测定的纤维蛋白原(FIB)含量分为3个水平组进行比较,并进行统计学分析。结果对PT-der法与Von Clauss法测定FIB含量进行比较,当FIB浓度在2.0~4.0g/L时,两组结果差异无统计学意义(P>0.05)。当FIB>4.0g/L或<2.0g/L时,差异有统计学意义(P<0.05)。结论 Von Clauss法准确性高,特异性强,快速简便,但试剂昂贵,而PT-der法不需另行独立测定,可节约试剂成本。实验室可将两种方法结合,这样既能保证结果的准确性,又保证检测速度,提高工作效率,节约成本。展开更多
文摘Objective:To investigate the effect of heparin on fibrinogen detection by Clauss method.Methods:A normal plasma pool(NPP)of 20 healthy people was prepared with 3.2%sodium citrate anticoagulant.For experimental group 1,samples containing different concentrations of heparin were prepared.For experimental group 2,samples of experimental group 1 were diluted twice.For experimental group 3,samples of experimental group 1 were diluted 4 times.For the control group,samples of normal saline with the same volume as heparin in experimental group 1 were prepared.The fibrinogen contents of experimental group 1,experimental group 2,experimental group 3,and control group were detected by Clauss method and prothrombin time(PT)-derived method,and the fibrinogen detection results of different groups were analyzed.Results:The trend of fibrinogen detected by Clauss method and PT-derived method in experimental group 1 was different;there was significant difference between the results of experimental group 1 and the control group(P<0.05);there was no significant difference between the results of experimental group 2 and the control group(P>0.05);there was no significant difference between the results of experimental group 3 and the control group(P>0.05);there was no significant difference between the results of experimental group 2 and experimental group 3(P>0.05);the relative deviation between experimental group 1 and the control group was higher in high-concentration heparin sample.Conclusion:Heparin affects fibrinogen detection by Clauss method,and the effect can be reduced by sample dilution.
文摘目的对Sysmex CA1500全自动血凝仪纤维蛋白原测定方法 Von Clauss法和PT-der法的应用进行比较评价。方法对门诊及住院患者167例标本同时用Von Clauss法和PT-der法测定,将结果按PT-der法测定的纤维蛋白原(FIB)含量分为3个水平组进行比较,并进行统计学分析。结果对PT-der法与Von Clauss法测定FIB含量进行比较,当FIB浓度在2.0~4.0g/L时,两组结果差异无统计学意义(P>0.05)。当FIB>4.0g/L或<2.0g/L时,差异有统计学意义(P<0.05)。结论 Von Clauss法准确性高,特异性强,快速简便,但试剂昂贵,而PT-der法不需另行独立测定,可节约试剂成本。实验室可将两种方法结合,这样既能保证结果的准确性,又保证检测速度,提高工作效率,节约成本。
文摘目的探讨两种常用方法测定血浆纤维蛋白原(FIB)的临床应用价值。方法抽取659例患者空腹静脉血,在Sysmex-510全自动血凝仪上用Von Clauss法和PT-der法分别测定Fg值,进行统计分析。结果总体及A、B、C 3组各组内两种方法测定的FIB值比较,差异有统计学意义(t总=-9.519,tA=-6.820,tB=-14.512,tC=-5.496,P<0.01)。结论 Von Clauss法优于PT-der法,各临床实验室应淘汰PT-der法,把clauss法作为测定Fg含量的常规检测方法。