A nurse is instructing a client who is newly diagnosed with pulmonary tuberculosis (TB) about the use of antitubercular medications. Which of the following information should the nurse include in the teaching?

A. Medications will need to be taken until the Mantoux test is negative: The Mantoux test (PPD) is used for diagnosis, not for monitoring treatment efficacy. B. A typical course of treatment usually involves 6 months of consistent medication use. TB treatment typically requires at least 6 months of consistent medication adherence to fully eradicate the bacteria and prevent resistance. C. Medications will need to be taken for the rest of the client's life, even if the client feels better: This is inaccurate. TB treatment is time-limited, though the full course must be completed. D. The client's family will also need to take medications to prevent infection: Prophylactic treatment is not usually required for all family members, though they may need screening.