The nurse is discharging a client to home with a prescription for clarithromycin (Biaxin). The nurse knows that teaching has been effective when the client states:

A. "I can quit taking this medication when I feel better.": Incorrect. Antibiotics should be taken for the full prescribed duration to ensure the infection is fully treated and to prevent resistance. B. "I cannot smoke while taking this medication.": Incorrect. While smoking cessation is generally beneficial for health, it is not specifically contraindicated with clarithromycin. C. "I cannot drive while taking this medication.": Incorrect. Clarithromycin does not typically impair the ability to drive. D. "I need to take this medication until it is gone.": Correct. This statement indicates understanding that the entire course of antibiotics should be completed to ensure effectiveness and prevent resistance.