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Objective The microbiology specimen types were various and complex ,the system of main specimen types in micro-biological detection was established under the laboratory information system (LIS) for realizing the management target of quality control before microbiological analysis .Methods A total of 3304 submitted microbiological samples were collected from January 1 to 31 in 2015 .After setting the microbiological item application procedure of main specimen types in LIS ,1532 submitted microbio-logical specimens from June 20 to 24 were performed the statistics .The error rates of specimen types were compared before and af-ter setting .Then 1635 and 1340 submitted microbiological specimens were re-collected form July 9 to 13 and August 10 to 15 ;the change of error rates was continuously observed for comparing whether the statistical difference of error rates existing between be-fore and after setting .Results The error rate of submitted microbiological specimens before setting was 4 .6% (152/3304) ,which after setting was 1 .3% (20/1532)(χ2 =31 .224 ,P<0 .001) ,which during the continuous observation period maintained the lower level of 1 .04% (17/1635) ,χ2 =39 .658 ,P<0 .001) and 0 .9% (13/1340 ,χ2 =34 .673 ,P<0 .001) .Conclusion Re-setting the LIS reduces the error rate of microbiological specimen type ,effectively increase the working efficiency and reaches the quality control in-dex before microbiological analysis .
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Objective:The one-way communication between traditional LIS system and equipment has been unable to meet the needs of business development of medical laboratory in our hospital, we need to upgrade our equipment and to develop the bidirectional communication interface between LIS and equipment.Methods: Our hospital has invested a lot of money to upgrade previous One-way communication interface based on ASTM, the new instrument specifications conform to HL7 standard, and develop bidirectional transmission program based on HL7.Results: After the implementation of the bidirectional communication, testing equipment can automatically identify bar code to get the test request information, after the completion of the test instrument, the inspection unit can automatically send sample results to LIS.Conclusion: Bidirectional transmission improves the work efficiency, transmission based on HL7 is not only fast, but also conducive to the sharing of data between heterogeneous medical information systems, and it is a general tendency.
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This paper discussed the existing problems of Information System ( LIS) from six aspects, inclu-ding:the security and the expansion of the function, protection of patients′privacy, the establishment of emergency response mechanisms, authenticity and accuracy of data and the risks for auto-approval rules, etc.The authors also analysed the necessity of its rectification from the perspective of ethics, proposed improvement programme and suggestions: strengthening the safety management systems and data, ensuring special check the confidentiality of the project, protect the patient′s privacy;setting up emergency mechanism;hospital based on the actual workload and resources to determine the LIS function module; regularly checking the test data, to avoid occupational inju-ries;continuously improving the rigour of automatic approval rules.
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BACKGROUND: The majority of patients undergoing stem cell transplantation (SCT) require a blood transfusion until the complete engraftment. Because blood transfusion rules for patients with ABO-incompatible SCT are complicated, we developed an ABO-incompatible transfusion management system (ABO-ITMS) for accurate blood transfusion and improved manageability. METHODS: A committee composed of medical doctors, technicians, and a programmer developed ABO-ITMS during the eight months from July 2013 to February 2014. The program has been linked with other databases, including clinical and laboratory databases and resulted in a new subsystem of the health information system. Server computer's operating system was Window Server 2008, and the database manager program was Oracle 11g. Programming language was ASP.Net (VBScript, C #), and the server and client computer were used to connect to the web server using a web browser. RESULTS: ABO-ITMS was designed to follow three main steps by hematologic oncology clinic, laboratory physician, and blood bank. In the first step, a hematologic-oncology clinic doctor inputs SCT recipients' data and appropriate ABO group for each phase of post-transplantation. Laboratory physician enters the isoagglutinin titer and ABO group at the second step. Finally, blood bank workers enter the results of type, screening, and antibody identification. The patient's SCT information and the previous immunohematologic test results are shown on the screen. CONCLUSION: ABO-ITMS can replace the existing complicated system and workflow. ABO-ITMS will contribute to reducing medical error and improving quality of SCT recipient care.
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Humans , Blood Banks , Blood Transfusion , Health Information Systems , Mass Screening , Medical Errors , Programming Languages , Stem Cell Transplantation , Web BrowserABSTRACT
This article describes the development,components and function of the laboratory automation system (LAS) and laboratory information system(LIS). And it also discusses the construction and application laboratory automation,and the operation of the automated laboratory information system.
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Objective Through the research of the disposal of clinic laboratory result information,the paper explore the methods of building up laboratory's online management system and network information system.Methods This project began with the analysis of the need of laboratory and applies computer to simulate the manual disposal process.The system framework was separated into many sub parts according to its function.VB,etc were used to program.Results The project has been gained successfully in the online managemert of two analyzers and the management of data network consisting of three laboratories.Conclusion The project has established a practical and reliable in-formation management system which matches the work mode in clinical laboratory and has novelty functions.
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Objective To introduce the aim,design principles,function and characteristic of LIS. Methods Through functionalized design of module,this net management system is created by composed application,sampling,check,count,verify,auditing,issuance,quality control,query,consume control as an entirety. Results The accurate test data,the timeliness report and the query convenience were increased. Conclusion The LIS can provide exact and quick medical service for patients.
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Objective To fully realize laboratory information sharing, giving full play of automation and intellectualization of laboratory devices and improving the management level and work efficiency. Methods A new network architecture method was adopted. The laboratory devices were connected by joining TS into the master network. A computer installing interface management program was used as device server. All laboratory instruments were managed by the interface management program. Results The new LIS realized the total inosculation of LIS and HIS and the connection method of different communication modes on many serial communication devices. Conclusion The method strengthens the system's network integration. The maintenance costs and PC resources are saved.
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Objective To solve the problem in traditional method: the specimens' quality cannot be monitored before the analysis of the testing.Methods The flow of Bar Code Management System for Hospital Test Specimen was designed.Results The flow of information and circulation of specimens were connected in all procedures such as physician on-line request for test,doctor's advice on-line collection and connection with bar code test tubes by nurse,specimens collection,carriage of specimens to laboratory,specimens acceptance through bar code scanning by laboratory checker,automatic determination and result report,etc.Conclusion Bar Code Management System guarantees the quality control before analyzing test specimens,enhances the reliability of test results and shortens the feedback time of test report.
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For effective construction of OCS(Order Communication System), the most core part of medical information system on medium and small hospital, this thesis understands the interface types of current medical treatment examination equipments and operational problems and shows the solution through the integrated interface management system. Showing the development cases of real time interface system for integration of clinical pathology inspection equipment, LIS(Laboratory Information System) and medical treatment system, this thesis suggests the basic construction element and the functions.
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Clinical Laboratory Information Systems , Information Systems , Pathology, ClinicalABSTRACT
There is still lack of a convinient system that connect referring physicians to the information system of referral hospitals, We proposed to develop the laboratory-information-accessing system(LISA) for physicians referred to AMC referral center with Web-based internet technology. We constructed the menu of AMC Referral Center as a part of Asan Medical Center(AMC) homepage. The information of the referred patients wee collected in the separate internal server and then transferred to the external network sever by a batch. Referring physicians was able to connect to AMC Referral Center via AMC homepage and then browse the list of their patients by putting their identification number and password. At the next, the physicians chose the patients and the test item to be displayed. In order that the referral system is established tin the medical part, the LISA world be more needed, in the society, which internet is getting popular. This LISA was introduced successfully now, and it could be a model of national standard for hospital information system.
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Humans , Clinical Laboratory Information Systems , Hospital Information Systems , Information Systems , Internet , Referral and Consultation , TinABSTRACT
Difficulties in calculation that hindered the practice of the delta check in the past is now no longer a problem thanks to the development of computers. But, high false positive rates, which creates heavy burden of checking-work load, are still a problem in the practice of the delta check. We propose a new approach to the reduction of false positive rates, naming our method "the multi-item univariate delta check (MIUDC) method". By the multi-item univariate delta check method, we mean a method in which univariate delta checks are performed on multiple items and specimens with the positive univariate delta check in at least k items receive a detailed investigation. Using data collected in the Department of Clinical Pathology at Korea University Guro Hospital via the Korea University Laboratory Information System, our research found that if we put specimens with positive univariate delta check in at least four test items (k=4) under a detailed investigation, check-out volumes will be light and efficiency will be high. As for test items deserving of more interest, total cholesterol, albumin, and total protein are appropriate because the false positive rate associated with them in the MIUDC was zero in a simulation study.
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Chemistry, Clinical , Cholesterol , Clinical Laboratory Information Systems , Korea , Pathology, Clinical , Quality ControlABSTRACT
Usually LIS(Laboratory Information System) depend on OCS(Order Communication System) of HIS(Hospital Information System). So, both systems are constructed simultaneously. But it needs high cost and has potential of failure. So, we designed one combined laboratory request slip and isolated LIS(sever: Power Mac 7200, eight clients: LC 475, connected by Ethernet) operating with own order input system before HIS construction. we analyzed the efficiency during early 9 weeks (from Aug. 17 to Oct. 17 in 1995) and later 4 weeks (March in 1996). Daily input amount of request changed stably in the later period(maximum: 552. mean: 410.0) than the early period(maximum: 604. mean: 341.6). Peak time was between 9 a.m. and 10 a.m.(maximum: 127. slip/hour). In the later period, 64.2% the requests for in-patients were completed until 10 a.m. and the request for out-patients distributed more evenly. Majority of problems occurred, were delayed(25.5% in the early, 61.1% in the later period) or missed specimen(31.9% in the early, 22.9% in the later). Total number (26,309) of used requests was less than half of the calculated number(57,621) of previous laboratory slips.
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Humans , Clinical Laboratory Information Systems , OutpatientsABSTRACT
Objective To introduce management of control and thinking from LIS System for providing some advice on the realization of clinical laboratory informatization. Methods Combined with our practical work, the general requirements, the overall structure, the design principles, the charging and the data security management of current information systems were analyzed. Results Under this model, LIS system was stable and secure, the laboratory workflow was also reasonable and the charging system is well in order. Conclusion The reasonable design and an overall co -ordination are required by the clinical laboratory information system, which will be better for our laboratory work and contribute much to the automation of laboratory information administration.
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Objective To construct health examination system based on network to satisfy the growing demand for businesses management. Methods Through interacting on the system interface with LIS. The use of diagnostic expressions, templates and default values speeded up medical data entry and deposit in scan mode to non -digital medical images. Results The software of health examination information system was developed and the work flow of health examination was reconstructed. Conclusion The physical examination information system can greatly reduce the workload of repeated transcription and entering, and enhance the efficiency of health examination management.
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Through the present delta value check used in quality control programs is a powerful tool for detecting random errors in clinical chemistry analysis, it has some problems, such as missed true errors and delays in reporting time, because it also has the potential of showing erroneous positive results. Recently, new calculation methods for delta check with delta difference, delta percent change, rate difference, and rate percent change have been suggested by Lacher and Connelly (Clin Chem 34:1966-1970, 1988). Based on this new delta check method, we made the new criteria of which calculation method is applied to the clinical chemistry tests, i.e., the differential application of rate and delta check, and selectively applied the new method to 17 chemistry tests in order to solve the above problems. The applied criteria were the time dependence of the test item and the coefficient of variation of the absolute delta difference. Calcium, inorganic phosphorus, total protein, albumin, sodium, potassium, and chloride were classified as delta difference calculation method group; glucose and cholesterol as delta percent change group; creatinine, total and direct bilirubin as rate difference group; and urea nitrogen, uric acid, ALP, ALT, and AST as rate percent change group. With the previous criteria by Whitehurst et al. (Clin Chem 221:87-92) for 5045 specimens, the check-out rate was 47.8% (2,411 out of 5,045), and the positive predictive value was 0.41% (10 out of 2,411). For the new criteria, the check-out rate was 12.7% (621 out of 5,045), and the positive predictive value was 1.8% (nine out of 621).(ABSTRACT TRUNCATED AT 250 WORDS)
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Albumins/analysis , Bilirubin/analysis , Calcium/analysis , Chemistry, Clinical/methods , Clinical Laboratory Information Systems/standards , Creatine/analysis , Glucose/analysis , Phosphorus/analysis , Quality Control , Reference Values , Sensitivity and Specificity , Specimen Handling , Urea/analysis , Work SimplificationABSTRACT
In this paper, barcode technique is combined with laboratory information system to improve the degree of automation in laboratory. Barcode stuck to specimen collected, such routine laboratory operations are finished according to barcode as specimen sorting, data transmission, two-way communication of analyzing machine, results verifying, reports inquiring, specimen keeping et al. As the only specimen identification, barcode is used to realize two-way communication between analyzing machine and it, thus laboratory workflow is simplified. The application of barcode technique to clinical laboratory improves work efficiency, result reliability and degree of automation greatly. It is the development direction in laboratory in the future.