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- W4200272022 abstract "Abstract Background C. difficile (CD) testing is frequently ordered inappropriately. Highly sensitive polymerase chain reaction (PCR) tests can detect CD colonization leading to misdiagnosis. Providers often overlook other causes of diarrhea, notably laxatives. To improve diagnostic stewardship, our hospital introduced an electronic medical record (EMR)-based order set (OS). Methods In a 926-bed, teaching hospital, we conducted a 3-step intervention to improve CD diagnostic stewardship. (1) A retrospective analysis of CD orders before and after OS implementation was done to assess its impact on inappropriate orders. The OS included two questions: (a) Did patient have ≥ 3 loose bowel movements in past 24 hours? and (b) No laxatives in past 24 hours? An appropriate order was defined if “yes” to both questions. It was still appropriate if “no” to either question but ≥ 2 unexplained following features: fever > 100.4 F, abdominal pain, megacolon, ileus or leukocytosis > 11,000 cells/mm3 in prior day. (2) After implementation of OS, house staff compliance with OS was surveyed via email. (3) Rationale for inappropriate orders was discussed with providers. Results Of 238 patients in retrospective analysis, 44% were ≥ 65 years and 37% had other potential causes of diarrhea. Common clinical features were leukocytosis (40%) and fever (31%). There was no significant difference in inappropriate testing: pre-OS 27/99 (27%) vs post-OS 44/139 (32%) (p=0.47). Of 43 house officers who participated in the survey, 75% indicated they over rode the OS. When asked to provide rationale of inappropriate CD testing, providers acknowledged inappropriate ordering but did not want to miss a CD diagnosis and frequently overlooked other causes of diarrhea. Conclusion Appropriate CD testing relies on providers’ appreciation of a clinical picture consistent with CD infection, confirmation of clinically significant diarrhea, and consideration of other causes of diarrhea. Providers order inappropriate tests, not due to lack of knowledge, but likely fear of missing diagnosis and overlooking other causes of diarrhea. Disclosures All Authors: No reported disclosures" @default.
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- W4200272022 date "2021-11-01" @default.
- W4200272022 modified "2023-09-26" @default.
- W4200272022 title "71. Diagnostic Stewardship of Clostridioides difficile Testing" @default.
- W4200272022 doi "https://doi.org/10.1093/ofid/ofab466.273" @default.
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