Abstract: Objective According to the node data in closed-loop management of specimen information, to analyze the problems in the process of blood sample transfer, and to improve the quality of sample transfer before the inspection with integrated management. Methods By extracting and analyzing relevant data in the transfer of blood samples, problems in the transfer process were found then integrated management measures such as joint management of different departments, distribution process reengineering and information system improvement were implemented. Totally 27, 511 sample data from October to November in 2017 before the intervention were taken as the control group, and 33, 032 sample data from March to April in 2018 after the intervention were taken as the experimental group. The effects were evaluated by comparing the omission rate of code scanning when receiving sampling, sampling duration, and sampling delivery duration. Results The omission rate of code scanning of blood samples decreased from 15.469% to 4.829% (P<0.05); the average length of sampling duration decreased from 67.13±53.49 to 53.34±49.35 min, and the average length of sampling delivery duration decreased from 51.10±81.58 to 38.60±49.56 min. All the differences had statistical significance (P<0.05) and no specimens lost. Conclusion The information tracing of sample transfer node is helpful to find out the problems in sample transfer. Through integrated management, omission rate of code scanning of specimens is reduced; the speed of specimen transport is improved and the storage time of specimens is shortened, thus to guarantee the quality of specimens before the inspection.

Key words: blood sample transfer, closed-loop management, effect evaluation