Audrey Schuetz, M.D., provides a detailed overview of Mayo Clinic Laboratories’ new culture-based extended spectrum beta lactamase (ESBL) testing. Used to screen for the presence of multi-drug resistant gram-negative bacteria in donor stool intended for fecal microbiota transplantation, the screening test is performed on stool or swab samples taken from around the anus to detect potentially harmful ESBL bacteria that could jeopardize the outcomes of fecal microbiota transplants. https://bit.ly/3