| Tests | Turnaround time | Sensitivity/specificity (%) | Limitations |
|---|---|---|---|
| C. difficile toxins assay (EIA) | 1–2 hours | (75–85)/(95–100) | The test lacks sensitivity but is rapid and available for all laboratories |
| GDH | 15–45 minutes | 58–68/100 | Do not distinguish whether the strain is toxigenic |
| NAAT | 2 hours | (80–100)/(87–99) | High cost |
| Confirms the presence of C. difficile toxin-producing strain, but it does not necessarily mean that the strain produces any toxins at the moment. |
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