The ARKRAY Clairo Combi-GN1 is a specialized antibiotic sensitivity testing disc containing 14 arms, each with a different antibiotic, used to determine the effectiveness of these agents against Gram-negative bacteria, such as those found in urinary tract infections (UTIs) and other common hospital-acquired infections. Its unique, multi-armed design allows for simultaneous testing of several antibiotics on a single culture plate, providing an efficient way to check bacterial resistance and guide appropriate treatment decisions for Gram-negative infections.