Modified Hodge Test (MHT) is a simple phenotypic test for detection of presence of carbapenemase enzyme in bacteria. Positive MHT test is observed in Klebsiella pneumoniae carbapenemase (KPC), Metallo Beta lactamase (MBL) and the SME-1 in Serratia marcescens. Modified Hodge Test (MHT) has been suggested as screening tests for carbapenemases.