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- Title
Effectiveness of A Nurse-Led Multimodal Intervention in Preventing Blood Culture Contamination: A Before-and-After Study.
- Authors
Filipe, Susana; Martins, Teresa; Santos-Costa, Paulo; Paiva-Santos, Filipe; Castilho, Amélia; Bastos, Celeste
- Abstract
Blood culture is crucial for accurate and timely bacteremia diagnosis and guide antibiotic therapy. However, during culture sampling, contamination can occur, resulting in misdiagnosis, unnecessary antibiotic exposure, and prolonged hospitalization. This before-and-after intervention study aimed to evaluate the effectiveness of a multimodal intervention in preventing blood culture contamination. The study was conducted in a 170-bed hospital in Portugal and included a total of 23,566 blood cultures. Contamination rates were assessed in two phases: Phase 1 (before intervention, month 0) included 10,928 cultures, and Phase 2 (after intervention, month 6) included 12,638 cultures. During the study period, a multimodal intervention targeting the nursing staff was implemented, consisting of training actions, guideline updates, regular data monitoring and feedback, and introduction of a blood culture pack. Following the intervention, blood culture contamination decreased from 6.8% (Phase 1) to 3.9% (Phase 2). A comparative analysis revealed that the risk of contamination before the intervention was nearly four times higher in first culture, OR = 3.97 (CI 2.86–5.49). Our findings suggest that the multimodal intervention enhanced nurses' adherence to recommended practices, resulting in a reduced risk of blood culture contamination, earlier identification of infectious agents, and improved accuracy of antibiotic therapy.
- Subjects
PORTUGAL; ANTIBIOTICS; BLOOD; MEDICAL protocols; T-test (Statistics); HOSPITAL nursing staff; BACTEREMIA; NURSING interventions; TREATMENT effectiveness; DESCRIPTIVE statistics; CELL culture; ODDS ratio; PRE-tests &; post-tests; BACTERIAL contamination; COMPARATIVE studies; CONFIDENCE intervals; COLLECTION &; preservation of biological specimens; DATA analysis software
- Publication
Healthcare (2227-9032), 2024, Vol 12, Issue 17, p1735
- ISSN
2227-9032
- Publication type
Article
- DOI
10.3390/healthcare12171735