Alfred DeMaria, Jr., M.D. Medical Director Bureau of Infectious Disease Prevention, Response and Services State Epidemiologist C. Difficile Testing Recommendations.

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Presentation transcript:

Alfred DeMaria, Jr., M.D. Medical Director Bureau of Infectious Disease Prevention, Response and Services State Epidemiologist C. Difficile Testing Recommendations

Testing for C. difficile Testing for CDI: Culture and toxin neutralization not practical in most laboratories (but gold standard) EIA for toxins A and/or B is easy to do, but not very sensitive (giving false negatives) GDH tells you C. difficile is present, but doesn’t tell you if it is toxin-producing GDH+ plus EIA+ = toxigenic C. difficile, but still have sensitivity problem related to EIA PCR more sensitive and as specific, and it identifies A&B toxin gene

C. Difficile Test “Rules” Only test unformed diarrheal stools Do not do repeat testing Do not test for “cure”