Methods: A retrospective evaluation of wound cultures processed by the SRMC microbiology laboratory was conducted for inpatients during the time period of December 28, 2015 to March 31, 2016. Culture and Gram stain results were collected and Q score and Q234 score were retrospectively calculated for each culture. The number and type of pathogens receiving ID and AST was compared for Q score, Q234 score, and actual pathogens worked up by SRMC laboratory.
Results: A total of 41 wound cultures were reviewed during the study period. These wound cultures contained 78 pathogens, other than diptheroids (n=8) and normal flora (n=10), and the SRMC laboratory performed ID and AST on 62 organisms (79.5%). The Q score suggested performing ID and AST on 48 pathogens (61.5%); Q234 score, 47 pathogens (60.3%). A total of 16 organisms (20.5%) considered noninfectious by the literature received ID and AST and 7 organisms (9.0%) considered infectious only received morphological identification (MID).
Conclusion: Utilizing the Q score or Q234 score for determining PP in wound cultures has the potential to decrease over-reporting of noninfectious pathogens and may reduce antibiotic consumption at a community teaching hospital. In addition, education is needed on the relevant potential pathogens to report from wound swabs.
O. Okoye, None
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