BCIDP Practice Questions - Board Certified Infectious Diseases Pharmacist Exam

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A hospitalized patient develops watery diarrhea and tests positive for Clostridioides difficile infection (CDI) toxin. This is the first episode with no severity markers. What is the recommended first-line treatment per IDSA/SHEA 2021 guidelines?

Oral metronidazole 500 mg three times daily for 10 days Oral fidaxomicin 200 mg twice daily for 10 days Oral vancomycin 500 mg four times daily for 14 days Intravenous vancomycin 1 g every 12 hours

Correct Answer:

Oral fidaxomicin 200 mg twice daily for 10 days

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