Microbiology General 7a067629 Rapid diagnostic test for gram negative bacterial Meningitis is A CSF - Latex agglutination B Nasopharyngeal swab culture C CSF - Culture D Limulus amebocyte lysate assay High-Yield Explanation Limulus amebocyte lysate reacts with bacterial endotoxin lipopolysaccharide, which is a membrane component of gram - negative bacteria.