The emergence and rapid worldwide spread of Extended- Spectrum Beta-Lactamase-producing enterobacteriaceae (ESBLE) both in hospital and community, led physicians, and notably intensivists, to prescribe more carbapenems, particularly in the most fragile patients such as ICU patients. Unfortunately, the increased carbapenem consumption favored the emergence of carbapenem resistance mechanisms. Moreover, several preliminary results suggest that carbapenem could markedly impact the human intestinal microbiota, Thus, reduction of carbapenem exposure is widely desired both by national and international antibiotic plans. Therefore, the use of rapid diagnostic tests evaluating bacterial resistance to reduce inappropriate exposure to carbapenems could be a relevant solution. Due to its good diagnostic performance, the betaLACTA® test could meet these objectives.