A 50-year-old with suspected C. difficile toxin EIA negative but PCR positive (NAAT). Minimal symptoms. What is the interpretation?...

Question

A 50-year-old with suspected C. difficile toxin EIA negative but PCR positive (NAAT). Minimal symptoms. What is the interpretation?

Accepted Answer

NAAT detects colonization; treat only if consistent clinical syndrome

Answer

Treat as CDI regardless

Answer

PCR is definitive; treat all positives

Answer

Repeat testing daily until positive toxin

Answer

Start probiotics

us-abim MCQ (SBA): CDI Diagnostic Algorithm