Fig. 2. Results of five years of testing applied according to the diagnostic guidelines. Abbreviations: GDH, glutamate dehydrogenase; CDI, C. difficile infection. Footnotes: CDI; CDI is likely to be present, No CDI; No further testing required. CDI is unlikely to be present, No CDI*: Clinical evaluation required (CDI or carriage of toxigenic C. difficile is possible) [2].

Ann Clin Microbiol 2025;28(3):14. Application of diagnostic algorithms for Clostridioides difficile infection using a GDH/ toxin test for five years from a single center in Korea: a diagnostic accuracy study

Fig. 2. Results of five years of testing applied according to the diagnostic guidelines. Abbreviations: GDH, glutamate dehydrogenase; CDI, C. difficile infection. Footnotes: CDI; CDI is likely to be present, No CDI; No further testing required. CDI is unlikely to be present, No CDI: Clinical evaluation required (CDI or carriage of toxigenic C. difficile* is possible) [2].