A nurse is caring for a client receiving an intravenous antibiotic. Which finding should the nurse recognize as a potential manifestation of a superinfection?

A. These symptoms are nonspecific and may occur due to the underlying infection, illness, or general effects of antibiotics. They are not characteristic of a superinfection and do not indicate overgrowth of opportunistic organisms. B. This is more consistent with a primary respiratory infection, either bacterial or viral, rather than a superinfection. While antibiotics can sometimes lead to secondary infections, green sputum alone does not indicate a superinfection caused by antibiotic therapy. C. White patches in the oral cavity are indicative of oral candidiasis (thrush), a common type of superinfection that can occur when antibiotics disrupt normal flora. Antibiotics can reduce the population of protective bacteria, allowing opportunistic organisms such as Candida albicans to overgrow. This is a classic manifestation of a superinfection. D. Mild chest discomfort is generally related to coughing or irritation from the primary infection or underlying respiratory condition. It is not indicative of a superinfection caused by antibiotics.