Research Article

Evaluation of preanalytical error processes in the microbiology laboratory and effect of training on these processes

Volume: 18 Number: 3 July 2, 2025
EN TR

Evaluation of preanalytical error processes in the microbiology laboratory and effect of training on these processes

Abstract

Purpose: We aimed to calculate preanalytical error rates in the Medical Microbiology Laboratory of our hospital by the six-sigma method and examine the effect of training on error rates by comparing performances of processes before and after training. Materials and methods: All samples evaluated between 2016-2021 were retrospectively examined. Rejected samples, blood culture contamination rate and urine culture contamination rate were evaluated via Laboratory Error Classification System. The staff obtaining laboratory samples were trained by means of live classes during 2017, 2018 and 2019, and with online classes during 2021. Error rates and sigma levels were calculated before and after training. Results: 685591 samples were accepted by our laboratory; 1175 (0.2%) were rejected. The most frequent cause of rejection (53.4%) was hemolysis of sample. The sigma levels showed hemolysis of the sample as the most frequent cause of rejection, with a value of 4.7 (good performance). Among other quality indicators, the rate of urinary culture contamination was 11.4%, and the rate of blood culture contamination was 3.5%. The total sigma level of urine culture contamination was 2.9 (unacceptable performance), and the total blood culture contamination was 3.5 (minimal performance). Error rates had generally decreased after training, while an increase in performance at the sigma level was detected at all three indicators. Conclusion: In order to minimize preanalytical errors in the medical laboratory, the preanalytical process should be regularly surveyed by quality and performance indicators, and continuing education should provide current information.

Keywords

References

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Details

Primary Language

English

Subjects

Health Services and Systems (Other)

Journal Section

Research Article

Early Pub Date

March 5, 2025

Publication Date

July 2, 2025

Submission Date

November 20, 2024

Acceptance Date

February 28, 2025

Published in Issue

Year 2025 Volume: 18 Number: 3

APA
Ceken, N., Duran, H., Kula Atik, T., & Avcı, E. (2025). Evaluation of preanalytical error processes in the microbiology laboratory and effect of training on these processes. Pamukkale Medical Journal, 18(3), 648-659. https://doi.org/10.31362/patd.1588433
AMA
1.Ceken N, Duran H, Kula Atik T, Avcı E. Evaluation of preanalytical error processes in the microbiology laboratory and effect of training on these processes. Pam Med J. 2025;18(3):648-659. doi:10.31362/patd.1588433
Chicago
Ceken, Nihan, Hülya Duran, Tuğba Kula Atik, and Esin Avcı. 2025. “Evaluation of Preanalytical Error Processes in the Microbiology Laboratory and Effect of Training on These Processes”. Pamukkale Medical Journal 18 (3): 648-59. https://doi.org/10.31362/patd.1588433.
EndNote
Ceken N, Duran H, Kula Atik T, Avcı E (July 1, 2025) Evaluation of preanalytical error processes in the microbiology laboratory and effect of training on these processes. Pamukkale Medical Journal 18 3 648–659.
IEEE
[1]N. Ceken, H. Duran, T. Kula Atik, and E. Avcı, “Evaluation of preanalytical error processes in the microbiology laboratory and effect of training on these processes”, Pam Med J, vol. 18, no. 3, pp. 648–659, July 2025, doi: 10.31362/patd.1588433.
ISNAD
Ceken, Nihan - Duran, Hülya - Kula Atik, Tuğba - Avcı, Esin. “Evaluation of Preanalytical Error Processes in the Microbiology Laboratory and Effect of Training on These Processes”. Pamukkale Medical Journal 18/3 (July 1, 2025): 648-659. https://doi.org/10.31362/patd.1588433.
JAMA
1.Ceken N, Duran H, Kula Atik T, Avcı E. Evaluation of preanalytical error processes in the microbiology laboratory and effect of training on these processes. Pam Med J. 2025;18:648–659.
MLA
Ceken, Nihan, et al. “Evaluation of Preanalytical Error Processes in the Microbiology Laboratory and Effect of Training on These Processes”. Pamukkale Medical Journal, vol. 18, no. 3, July 2025, pp. 648-59, doi:10.31362/patd.1588433.
Vancouver
1.Nihan Ceken, Hülya Duran, Tuğba Kula Atik, Esin Avcı. Evaluation of preanalytical error processes in the microbiology laboratory and effect of training on these processes. Pam Med J. 2025 Jul. 1;18(3):648-59. doi:10.31362/patd.1588433

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