Internal Quality Assurance Status of Stool Examination as Assessed by a Questionnaire in Korean Clinical Laboratories
- Author:
Yong Jun KWON
1
;
Eun Jeong WON
;
Seung Jung KEE
;
Soo Hyun KIM
;
Myung Geun SHIN
;
Jong Hee SHIN
;
Soon Pal SUH
Author Information
- Publication Type:Brief Communication
- Keywords: Stool examination; Quality control; Survey
- MeSH: Clonorchis sinensis; Electronic Mail; Endolimax; Entamoeba; Enterobius; Hope; Korea; Parasites; Quality Control; Surveys and Questionnaires
- From:Laboratory Medicine Online 2018;8(1):19-23
- CountryRepublic of Korea
- Language:English
- Abstract: This study aimed to survey the status of quality control (QC) assurance for stool examinations at clinical laboratories in Korea. We sent a questionnaire related to QC practices in stool examination by electronic mail to Korean clinical laboratories that performed stool examination. Overall, 20 of the 39 laboratories (51.3%) reported performing stool concentration methods, and 28 (71.8%) examined the slides using only saline. A large proportion (74.4%) of respondents did not check the internal QC because of the restriction of appropriate control materials. Only four laboratories (10.3%) checked the reactivity of the dye solution routinely. For appropriate external QC systems, QC slides (43.6%) were preferred, followed by QC materials (30.8%), virtual slides (17.9%), and a combination of the above options (7.7%). The most commonly observed parasites in stool samples at the clinical laboratories were Clonorchis sinensis (75%), followed by Endolimax nana, Enterobius vermicularis, and Entamoeba coli. The present study describes the difficulties in internal QC assessment due to the absence of standardized QC materials and systems. We hope the findings of this report will provide a foundation for a QC assessment program for stool examinations in the near future.
