Autoverification of the automated blood cell counter (CBC) in a reference laboratory in Bogota, Colombia

Martínez-Nieto, Oscar; Lozano-Gaitán, Adriana; Beltrán-Diaz, Paola; Mojica-Figueroa, Ivan Leonardo; Morales-Reyes, Olga Lucía; Isaza-Ruget, Mario A.

doi:10.5935/1676-2444.20150058

Cited by 5 publications

(4 citation statements)

References 4 publications

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“…For microscopy, the AV passing rate in this study was 42%, which is nearly the same as the 43% rate reported by Torke, et al 7 , and the 47.6% rate reported by Palmieri, et al 16 For hematology, the passing rate in this study was 39%. Martinez-Niteo, et al 17 found a passing rate of 53.4% in pilot study, with a subsequent increase to 60% 18 months later -both of which were very high compared to our result. For coagulation, our passing rate was 85%, which is similar to the 82% result reported by Zhao, et al 21 Our study found that the overall TAT decreased from 54.2 to 52.4 minutes (3.3%) after the implementation of AV.…”

Section: Discussioncontrasting

confidence: 71%

“…Computer-based actions could include immediate verification of a result, repeat analysis, reflexive testing, addition of comments, or manual steps, including manual review of the results. 1 Previous studies described the use of AV in some sections or specific test groups of laboratories, including clinical chemistry 2,7,8,[11][12][13] , arterial blood gas 14 , thyroid function 4,6 , sex hormones 4 , hepatitis B serological markers 15 , urinalysis 7,16 , hematology [17][18][19][20] , and coagulation. 18,[21][22][23][24] Our laboratory experiences a 3-9% annual increase in testing volume each year; however, the number of personnel that perform manual result verification has not increased.…”

Section: Introductionmentioning

confidence: 99%

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Autoverification Improved Process Efficiency, Reduced Staff Workload, and Enhanced Staff Satisfaction Using a Critical Path for Result Validation

Nuanin

Tientadakul

Reesukumal

et al. 2020

Smj

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Objective: Continuous process improvements enhance accuracy and productivity in a clinical laboratory setting. This study aimed to investigate the accuracy and efficiency of a new autoverification (AV) system designed to improve the consistency and uniformity of reported laboratory test results. Methods: Limit checks, delta checks, and consistency checks were established, and then retrospective data from 500 requested tests were used to evaluate the accuracy of AV rules compared to manual verification, which was performed by five experienced medical technologists. Efficiency was evaluated by comparing turnaround time (TAT), error rates, workload, and staff satisfaction between before and after AV implementation. Results: AV had 100% sensitivity, 77.6% specificity, and a 22% false-positive rate. The AV passing rate was 95%, 85%, 42%, and 39% for chemistry, coagulation, microscopy, and hematology, respectively. The overall passing rate was 65%. After implementation, the mean overall TAT decreased from 54.2±26.6 to 52.4±24.2 min (p<0.001). However, TAT during peak hours increased (p<0.05). Incident reports decreased 8-fold (p<0.05), net workload decreased by 0.76 full-time equivalent, and overall staff satisfaction increased (p<0.001). Conclusion: Our laboratory's new AV system demonstrated an overall passing rate of 65% with decreases in TAT, incident reports, and workload, and an increase in staff satisfaction.

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Section: Discussioncontrasting

confidence: 71%

Section: Introductionmentioning

confidence: 99%

Autoverification Improved Process Efficiency, Reduced Staff Workload, and Enhanced Staff Satisfaction Using a Critical Path for Result Validation

Nuanin

Tientadakul

Reesukumal

et al. 2020

Smj

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“…In another study, researchers found that autoverification reduced the routine and urgent TAT duration of thyroid-stimulating hormone, prothrombin time, and CBC tests [6]. In another study conducted in Colombia, the authors reported that hemogram samples were approved by autoverification at a rate of 53.5%, which enabled laboratory experts to allocate more time to the pathological results [7]. Recently, a study examined the 4 most common coagulation assays as approved by autoverification protocols, and the authors confirmed that the automated validation system for coagulation tests can stop samples with abnormal values for manual verification, reliably assure medical safety, minimize manual work requirements, shorten TAT, and improve work efficiency [8].…”

Section: Discussionmentioning

confidence: 99%

“…However, all of the literature studies have reported enhancement in TAT with autoverification, and 1 study indicated an error rate reduction of >90% [7]. Despite the convenience of using a standard rule set, there is still significant variability in the quantity and type of rules used and, as a result, there are important differences in autoverification, with pass rates ranging from about 50% to >90% [7,11,12]. The extended IPU in our study runs an inquiry on 21 parameters in the pre-analytical and analytical phases.…”

Section: Discussionmentioning

confidence: 99%

Investigation of the Effect of Autoverification Process on Hematology Laboratory Workflow

kazezoğlu¹

2020

Int J Med Biochem

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Investigation of the effect of autoverification on hematology laboratory workflowA computer-based laboratory result approval support system, or an autoverification process, is an application that applies user rules, minimizes errors, saves time in laboratory operations, and assists the laboratory specialist. It can be used in clinical chemistry, immunoassay, hematology, and urine analysis, and is now included in laboratory and diagnostic guides. Laboratory device manufacturers and laboratory information system (LIS) software companies have conducted pioneering work in this field. Machine-learning algorithms and complex statistical functions have been used to reform procedures to recognize common pre-analytical errors [1].Autoverification permits the release of clinical laboratory results without manual human intervention [2]. There are many scientific studies on the use of approval support systems. A rules-based system based on the quality of laboratory in-strumentation and quality of the results generated has been described to help decide if a laboratory should pursue the advantages of autoverification [3]. Basic rule sets for autoverification have not significantly changed for most laboratories and laboratory information systems for the past 20 years. The increasing use of new informatics tools and the general expansion of networks, client servers, and middleware have made new capabilities for autoverification universally available. The technological development of analyzers, control of the pre-analytic and analytic phase, and the precision of qualitative and quantitative hemogram data enable a laboratory specialist to be more and more efficient in detecting hematologic diseases [4]. The French-Speaking Cellular Haematology Group (GFHC) has proposed a standardization of professional practices with recommendations for quantitative and/or qual-Objectives: The aim of this study was to evaluate the effect of an autoverification process on test turnaround time (TAT), sample rejection rate, and the sample test repetition rate. Methods: The study was carried out in the core laboratory of İstanbul Kanuni Sultan Suleyman Training and Research Hospital. Sysmex XN9000 series middleware (Sysmex Corp., Kobe, Japan) was used to perform the autoverification. The rate of test rejection, test repetition, and TAT of the 3 months preceding use of autoverification were compared with those of a 3-month period following initiation of use of the Sysmex hematology analyzer autoverification process. Results: A total of 612,639 test results of complete blood count profiles performed between January 2019 and March 2019 were collected to determine the distribution intervals. The sample rejection and test repetition rates and the TAT were significantly reduced (21.18%, 49.62%, and 23.9%, respectively) after implementation of the new analyzer. Reflex testing rates, such as peripheral smear and reticulocyte count, were significantly increased. Conclusion: Autoverification improved laboratory performance parameters. The hematology lab workflo...

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Autovalidation and automation of the postanalytical phase of routine hematology and coagulation analyses in a university hospital laboratory

Mlinarić

Miloš

Herak

et al. 2017

Clinical Chemistry and Laboratory Medicine (CCLM)

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Autoverification of the automated blood cell counter (CBC) in a reference laboratory in Bogota, Colombia

Cited by 5 publications

References 4 publications

Autoverification Improved Process Efficiency, Reduced Staff Workload, and Enhanced Staff Satisfaction Using a Critical Path for Result Validation

Autoverification Improved Process Efficiency, Reduced Staff Workload, and Enhanced Staff Satisfaction Using a Critical Path for Result Validation

Investigation of the Effect of Autoverification Process on Hematology Laboratory Workflow

Autovalidation and automation of the postanalytical phase of routine hematology and coagulation analyses in a university hospital laboratory

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