The genotypic antibiogram: using gram-negative antimicrobial resistance genes identified via rapid blood culture identification tests to optimize treatment of Enterobacterales bloodstream infections

The negative predictive value of bla (CTX-M) on BCID2 for ceftriaxone resistance in E. coli and K. pneumoniae group was 97% and 94%, respectively. Creation of a genotypic antibiogram led to updated local guidance for clinicians to utilize for empiric treatment of Enterobacterales bloodstream infections identified via rapid diagnostics.