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ATP 측정과 미생물 배양검사를 이용한 카바페넴내성장내세균 보유환자 병실 환경 오염 및 환경 소독 효과 평가

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Abstract
Purpose: To determine the extent of environmental contamination and the effect of disinfection around patients with carbapenem-resistant Enterobacteriaceae (CRE) using adenosine triphosphate (ATP) measurements and microbial culture tests. Methods: The subjects of this study were 10 patients hospitalized in a single room due to CRE from April 13 to 21, 2021. One hundred and sixty samples were collected using cotton swabs from the patients’ environment including the surface and drain of sinks and toilet seats before and after disinfection of the room after discharge. Twenty-one samples were collected from the nurses’ personal digital assistants (PDAs), keyboards, and computer mice before disinfection. The relative light units (RLUs) and CRE colony-forming units (CFU) of 181 samples were measured using ATP test equipment and chrome agar plates, respectively. Results: The highest RLUs were measured at the sink drains before and after disinfection. Four CRE samples from the sink drains (2), sink surface (1), and toilet bowl (1) before disinfection were cultured. Based on the failure criteria (≥250 RLU/cm2 and ≥1 CFU/100 cm2), 90 % and 50 % of the samples from the drain exceeded the failure criteria before and after disinfection, respectively. In the culture tests, CRE was not detected after disinfection. Conclusion: According to the RLU and CFU measurements of drain samples, disinfection was not effective. Thus, improvements in the disinfection methods of drains, as well as more efficient and systematic environmental decontamination and disinfection evaluation tools, are needed to accurately evaluate the effectiveness of disinfection in various places.
Author(s)
김지은정재심김미나박은숙
Issued Date
2021
Type
Article
Keyword
카바페넴내성장내세균소독아데노신3인산
URI
https://oak.ulsan.ac.kr/handle/2021.oak/9450
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Publisher
Journal of Korean Biological Nursing Science
Location
대한민국
Language
한국어
ISSN
2383-6415
Citation Volume
23
Citation Number
4
Citation Start Page
339
Citation End Page
346
Appears in Collections:
Medicine > Nursing
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