RE Q A farmer comes to the clinic with history of wound caused by a wire. O/E the site is red and tender. Which one of the following Ix can be used to exclude clostridium difficile infection. a. Biopsy of the muscle b. aerobic culture c. anaerobic culture d. x-ray of the site and looking for subcutaneous emphysema////////// e. blood culture ??But C difficile causes a diarrhea commonly not gas gangrene.. If other cl species causing gas gangrene gram stain and culture of bulle fluid and x ray and USG can also be used to look for gas. Please correct me if im wrong ?