Discussion on the new mode of blood isolation and batch release / 中国输血杂志

ABSTRACT

【Objective】 To compare the effectiveness of the old mode of blood isolation and batch release (the old mode) and the new mode in Chengdu, so as to provide basis for optimizing working strategy. 【Methods】 1) The blood testing report was released one by one in the old mode but released uniformly in accordance with the blood batches classified by blood storage and supply department in the new mode. 2) In the old mode, apheresis platelet samples were detected by serological testing first and nucleic acid testing(NAT) later, and whole blood samples were reasonably arranged according to blood inventory and detection workload. In the new mode, platelets samples collected within our center headquarters were detected by serological test and NAT simultaneously, while those collected outside the center complied with the old strategy. As for whole blood, the same batch samples classified by blood storage and supply department should be arranged to the detection line with the fewest samples.3) The turnaround time(TAT) in the laboratory (referred to as sample TAT) and the TAT in the blood to-detect stock (referred to as blood TAT) in two phases(year 2016 vs 2018, pre- and post- the new mode), involving 164 748 and 179 488 blood samples, were compared by SPSS25.0 software. The constituent ratio of the TATs were compared with Chi-square test, and the difference of blood TAT between old and new mode were compared with Mann-Whitney U test. 【Results】 1) Significant difference was noticed in constituent ratio of TATs between old and new mode (P<0.05). 2)The blood TATof apheresis platelets using the new mode was 0.95(QR 0.22)days, with the median 0.20 days shorter than that the old mode.. The blood TAT of whole blood in the new mode was 3.77 (QR 1.99) days, with the median 0.90 days shorter than that in the old mode, and the difference was statistically significant (P<0.05). 【Conclusion】 Compared with the old mode, the new mode showed the following advantages 1) It can realize the unified issuing of testing reports of blood with the same batch, contribute to the early discovery of errors that occurred during blood donation process, and located the errors wihin intra-batches for investigation. 2) It can advance the issuing of blood testing reports of the same batch. 3) It can make the flow of samples and blood with the same batch between different departments more standardized and orderly, and optimize the process of blood sorting thus shortening blood TAT. 4) It can realize the counting and checking of samples, within the same batch, at different states, so as to minimize the error issuing of unqualified blood and to-detect blood, and is more conducive to ensure the quality, safety and timely supply of blood.