Lab Med Qual Assur 2022; 44(4): 185-190
Published online December 31, 2022
Copyright © Korean Association of External Quality Assessment Service.
1Department of Laboratory Medicine, Chonnam National University Hwasun Hospital; 2Department of Parasitology and Tropical Medicine, Chonnam National University Medical School, Hwasun; 3Department of Laboratory Medicine, Chonnam National University Hospital, Gwangju, Korea
Correspondence to:Eun Jeong Won
Department of Laboratory Medicine, Chonnam National University Hwasun Hospital, 264 Seoyang-ro, Hwasun-eup, Hwasun 58128, Korea
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Annual proficiency surveys were conducted three times a year (2020–2021) by the Korean Association of External Quality Assessment Services. In addition to the image samples (MPI-20-01–MPI-20-04 and MPI-21-01–MPI-21-05), the pre-made slide samples (MPS-20-01–MPS-20-05 and MPS-21-01, MPS-21-02) and the formalin samples (MPF-21-01 and MPF-21-02) were included. Even though the image samples were not usually found recently, they were prepared to target parasites that were clinically or epidemiologically important in Korea. The overall agreement rates were 97.7% in 2020 (participant laboratories numbers 214–216) and 98.2% in 2021 (participant laboratories numbers 211–213). The agreement rates were significantly lower for the MPS samples than for the MPI samples (MPS 96.6% vs. MPI 99.1%, P=0.0002) in 2020. The agreement rates were significantly lower for the MPF samples than for the MPI or MPS samples (MPF 96.0% vs. MPI 98.9% or MPS 98.6%; P=0.0007 or P=0.0207, respectively) in 2021. Based on our in-depth survey of clinical parasitology, it should be accompanied by continuous education about different parasitic infections, which could aid in overcoming the lack of experience in clinical laboratory inspections.
Keywords: Quality control, Parasitology, Formalin-fixed specimen
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