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The Journal of the Japanese Society for Clinical Microbiology |
Biblioraphy Information
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[Vol.33 No.4 contents] Japanese / English |
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| ArticleTitle | Quality Assessment of Microbiological Testing at Clinical Laboratories in Tokyo, 2010-2019 |
| Language | J |
| AuthorList | Mayuko Oda1,2), Rie Moriuchi3), Hiroyuki Konishi1,4), Hirofumi Tsuboi5), Yoshikazu Ishii6) |
| Affiliation |
(1) Past address: Quality Control Section, Tokyo Metropolitan Institute of Public Health, at the time when this work was carried out) (2) Current address: Division of Food Hygiene and Nutrition, Department of Food Safety, Tokyo Metropolitan Institute of Public Health) 3) Quality Control Section, Tokyo Metropolitan Institute of Public Health (4) Current address: Seimeigakuen, Bureau of Social Welfare and Public Health, Tokyo Metropolitan Government) 5) Medical Safety Section, Medical Policy Division, Bureau of Social Welfare and Public Health, Tokyo Metropolitan Government 6) Department of Microbiology and Infectious Diseases, Toho University School of Medicine |
| Publication | J.J.C.M.: 33 (4), 268-274, 2023 |
| Received | May 8, 2023 |
| Accepted | July 4, 2023 |
| Abstract | The Tokyo Metropolitan Government has been conducting external accuracy control surveys of clinical laboratories since 1982 and publishes the results of these surveys in an annual report. This report aimed to analyze the results of microbiological tests in this survey from 2010 to 2019 so that the findings obtained can be used to implement appropriate surveys in the future. The survey items were microbiological identification and Gram staining. We conducted two types of surveys: the open survey, in which survey samples were distributed directly to clinical laboratories, and the blind survey, in which survey samples were distributed without revealing the fact that it was a survey. The results of both surveys were compared in terms of microbiological identification. For microbiological identification, the incorrect identification rates were 0-15.4% (4 of 26 laboratories) for open surveys and 0-47.6% (10 of 21 laboratories) for blind surveys. Comparison of results between open and blind surveys showed discrepancies in some years. An increasing number of clinical laboratories used simple identification kits or mass spectrometers as methods for microbiological identification. The percentage of not acceptable Gram stains ranged from 0 to 5.9% (1 of 17 laboratories). The survey results indicate that the levels of testing for microbiological identification and Gram staining in clinical laboratories in Tokyo were adequate. In the future, it will be necessary to continue the conventional surveys and to examine the current level of testing in clinical laboratories and the items and evaluation methods that meet the needs of the times. |
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