Comparative analysis on the coagulation convention test result of coagulation analyzers

Objective To evaluate accuracy and consistency of the coagulation convention that involves PT,INR,APTT,Fib on two coagulation analyzers(stago CT type and stago RE type from France Stago company) in our department.Methods The supporting calibrator was used to calibrate the two coagulation analyzers,and the quality control substance was used to assess the stability of conventional coagulation;the accuracy and consistency of the coagulation convention were evaluated by comparison test.Results The percentage of variation coefficient(CV) of the four test results were in line with the standard of quality assessment of coagulation chamber of Ministry of Health Clinical Laboratory Center.Stago CT-based test results of blood coagulation analyzer had a good relationship with stago RE-type blood coagulation analyzer value,except the r of Fib was 0.959 8,correlation coefficient of the remaining test items were higher than 0.975.Conclusion The comparison of these four tests results(PT,INR,APTT,Fib) on different blood coagulation analyzers effectively improves the comparability of different blood coagulation analyzer,and effectively ensures the accuracy and precision of test results and the quality of the inspection.