A nurse is teaching a client about taking to treat a gastrointestinal (Gl) infection due to Helicobacter pylori. Which of the following statements should the nurse identify as an indication that the client understands the instructions?

A. Incorrect: Taking antibiotics with milk can decrease absorption and effectiveness. B. Incorrect: Antibiotics for H. pylori should be taken on a fixed schedule, not as needed. C. Correct: Antibiotics can disrupt normal flora, increasing the risk of yeast infections. Clients should report signs of candidiasis (e.g., white patches in the mouth, vaginal itching). D. Incorrect: Stopping antibiotics early can lead to incomplete eradication of H. pylori and antibiotic resistance.