An evaluation of the detection capacity of a computer-assisted real-time delta check system.

1979 ◽  
Vol 25 (6) ◽  
pp. 870-872 ◽  
Author(s):  
P P Sher
Keyword(s):  
Real Time ◽  
Clinical Condition ◽  
Clinical Chemistry ◽  
Chemistry Laboratory ◽  
Computer Assisted ◽  
Test Results ◽  
Laboratory Staff ◽  
Laboratory Errors ◽  
Clinical Chemistry Laboratory ◽  
Check System

Abstract We developed of computer programs to evaluate the clinical reliability of test results by comparing each new result with previous results for the same patient, and to signal discrepancies in real time. These "delta check" discrepancies are noted, and they must be reviewed by the laboratory staff before results can appear on a patient's record. During a month, I reviewed 1403 such delta check messages and detected 55 (3.9%) that could not be explained on the basis of the patient's clinical condition. Of these, 23 represented true laboratory errors, which were corrected. The recognition of discrepancies before they appear on patients' reports has facilitated the operation of the clinical chemistry laboratory. Mislabeled and otherwise mishandled specimens are discovered before erroneous results appear on a patient's record.

Patients as Their Own Controls: Use of the Computer to Identify "Laboratory Error"

1975 ◽  
Vol 21 (11) ◽  
pp. 1648-1653 ◽  
Author(s):  
Jack H Ladenson
Keyword(s):  
Quality Control ◽  
Clinical Laboratory ◽  
Clinical Chemistry ◽  
Chemistry Laboratory ◽  
Test Results ◽  
Total Calcium ◽  
Laboratory Error ◽  
Total Thyroxine ◽  
Clinical Chemistry Laboratory ◽  
Check System

Abstract I describe a system of quality control based on computer detection of changes in individual patient test results. This system, called "delta check," was used to follow all the tests performed by the clinical chemistry laboratory in a 1200-bed hospital. Analysis of 22 months’ experience indicates that specimen misidentification is a serious problem in the clinical chemistry laboratory. Over a nine-month period, errors were most frequent in the results for total thyroxine, total calcium, and total protein. Instances of laboratory error detectable by the delta check system are not detected by other currently used methods of quality control. This system therefore appears to be a valuable asset to the clinical laboratory

scholarly journals CLINICAL CHEMISTRY LABORATORY TESTING

2006 ◽  
Vol 12 (02) ◽  
pp. 139-144
Author(s):  
ASMA SHAUKAT ◽  
Shahid Irfan ◽  
TARIQ MAHMUD ARAIN ◽  
Soufia Farrukh ◽  
AMNA SHAHID
Keyword(s):  
Quality Assessment ◽  
External Quality Assessment ◽  
Clinical Chemistry ◽  
Chemistry Laboratory ◽  
Test Results ◽  
External Quality ◽  
External Quality Assessment Scheme ◽  
Chemical Test ◽  
Clinical Chemical ◽  
Clinical Chemistry Laboratory

Objective: To determine the affect of autonomy on clinical chemicaltesting in pathology department Quaid-i-Azam Medical College and to assess the change in the attitudes oflaboratorians and physicians Study design: Retrospective and comparative. Duration of study: 1-11-93 to 01-11-03Materials and Methods: A retrospective study was carried out from 1-11-93 to 01-11 03 in which records from 1-11-93to 1-11-03 were collected and evaluated .Separate record of each month’s revenue from clinical chemistry section wascalculated. In order to determine what changes have been brought about after autonomy a universal questionnairewas used to assess the attitudes of physicians and surgeons of hospital inquiring whether they noticed anyimprovement in the efficiency of clinical chemical test results after autonomy. 620 doctors were interviewed throughstructured questionnaire. The questionnaire was designed to assess the knowledge , attitude and practices of doctorstowards autonomy. In order to determine that who is the most beneficent of autonomy ,different records werecollected. and discussions were made with consultants. Results: Autonomy brought about a healthy change in the staffof clinical chemical section. Quality control has improved the morale of lab staff since technical deviations are morereadily identified and corrected within the lab, gross errors are rarely found by the clinicians and so their respect forand confidence in the lab has strengthened Replenishment of chemicals/reagents are timely made. The number ofavailable test has significantly increased which in turn has significantly raised the revenue generated since autonomy is awarded. Pilferage of chemicals has been stopped. Turn around time has been decreased. Clinical Chemical sectionparticipates in External Quality Assessment Scheme, NEQAPP (National External Quality Assessment ProgramPakistan),which is an essential part of the routine of a well –run lab. Patient is the most beneficent since autonomy isawarded to QMC/BVH, BWP. Conclusions: A significant improvement in the efficiency of the analytical performancehas strengthened the faith of laboratorians and physicians in the test results after autonomy

Selecting Automation for the Clinical Chemistry Laboratory

2007 ◽  
Vol 131 (7) ◽  
pp. 1063-1069 ◽  
Author(s):  
Stacy E. F. Melanson ◽  
Neal I. Lindeman ◽  
Petr Jarolim
Keyword(s):  
United States ◽  
Selection Process ◽  
Clinical Chemistry ◽  
The United States ◽  
Chemistry Laboratory ◽  
Final Decision ◽  
Laboratory Automation ◽  
Laboratory Staff ◽  
Automation Systems ◽  
Clinical Chemistry Laboratory

Abstract Context.—Laboratory automation proposes to improve the quality and efficiency of laboratory operations, and may provide a solution to the quality demands and staff shortages faced by today's clinical laboratories. Several vendors offer automation systems in the United States, with both subtle and obvious differences. Arriving at a decision to automate, and the ensuing evaluation of available products, can be time-consuming and challenging. Although considerable discussion concerning the decision to automate has been published, relatively little attention has been paid to the process of evaluating and selecting automation systems. Objective.—To outline a process for evaluating and selecting automation systems as a reference for laboratories contemplating laboratory automation. Design.—Our Clinical Chemistry Laboratory staff recently evaluated all major laboratory automation systems in the United States, with their respective chemistry and immunochemistry analyzers. Our experience is described and organized according to the selection process, the important considerations in clinical chemistry automation, decisions and implementation, and we give conclusions pertaining to this experience. Results.—Including the formation of a committee, workflow analysis, submitting a request for proposal, site visits, and making a final decision, the process of selecting chemistry automation took approximately 14 months. We outline important considerations in automation design, preanalytical processing, analyzer selection, postanalytical storage, and data management. Conclusions.—Selecting clinical chemistry laboratory automation is a complex, time-consuming process. Laboratories considering laboratory automation may benefit from the concise overview and narrative and tabular suggestions provided.

Graphical Non-Linear Representation of Multi-Dimensional Laboratory Measurements in their Clinical Context

1991 ◽  
Vol 30 (02) ◽  
pp. 138-144 ◽  
Author(s):  
J. O. O. Hoeke ◽  
E. S. Gelsema ◽  
R. W. WuIkan ◽  
B. Leijnse
Keyword(s):  
Information Transfer ◽  
Graphical Representation ◽  
Clinical Chemistry ◽  
Linear Representation ◽  
Clinical Decision ◽  
Chemistry Laboratory ◽  
Test Results ◽  
Laboratory Test Results ◽  
Non Linear ◽  
Clinical Chemistry Laboratory

AbstractA polygon-based graphical representation of laboratory test results using non-linear scaling is described. It is argued that the non-linearity of the scale and the use of colors in the representation facilitates interpretation of the test result in its relationship to the standard reference range and critical clinical decision levels. Preliminary results suggest that this representation may be fruitfully used to enhance the efficiency of the information transfer from the clinical chemistry laboratory to clinicians. Other applications, inside as well as outside the medical field, may easily be imagined.

scholarly journals Introduction of Computer Facilities to a Clinical Chemistry Laboratory

1980 ◽  
Vol 17 (1) ◽  
pp. 47-52
Author(s):  
Leo M Morgan ◽  
Greg McConnell ◽  
Edward Chandler ◽  
S Gordon Welshman
Keyword(s):  
Information System ◽  
Real Time ◽  
Clinical Chemistry ◽  
Data Capture ◽  
Chemistry Laboratory ◽  
Laboratory Information System ◽  
Clinical Chemistry Laboratory ◽  
Cusum Charts ◽  
On Line ◽  
Time Basis

A clinical chemistry laboratory information system based on MUMPS is described, together with the problems associated with its implementation. Tabular displays and cusum charts as well as cumulative records are available on a real-time basis. Data capture is by both on-line and off-line techniques. After 18 months' live running the management of information within the laboratory has been significantly improved.

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