A nurse is caring for a toddler whose guardian reports multiple episodes of diarrhea. The provider suspects Clostridium difficile. Which of the following actions should the nurse take?

A. Blood cultures are typically used to detect systemic infections or bacteremia, not Clostridium difficile, which is a bacterial infection primarily affecting the intestines. B. A stool specimen for culture is the appropriate diagnostic test when C. difficile is suspected, as it can confirm the presence of the bacteria responsible for the infection. The stool test detects toxins A and B, which are produced by C. difficile and cause severe diarrhea. C. The term "C. diff test" is too vague and does not specify a standard laboratory procedure. The correct test involves stool culture or toxin detection. D. A stool test for occult blood checks for hidden blood in the stool, which may indicate gastrointestinal bleeding but does not diagnose C. difficile.