Le khithi isetshenziselwa ukutholwa kwekhwalithi yofuzo lokumelana ne-carbapenem kumasampuli esikhwehlela sabantu, amasampula e-rectal swab noma amakholoni ahlanzekile, okuhlanganisa i-KPC (Klebsiella pneumonia carbapenemase), NDM (New Delhi metallo-β-lactamase 1), OXA48 (oxacillinase 48), I-OXA23 (oxacillinase 23), VIM (Verona Imipenemase), kanye ne-IMP (Imipenemase).