A nurse is caring for a client who has active tuberculosis. Which of the following interventions should the nurse include in the plan of care?

A. Sputum specimens are typically obtained at the start of treatment and then periodically (e.g., every 2–4 weeks) to monitor response to therapy, not necessarily daily. Daily collection is unnecessary unless specifically indicated by the provider. B. Chest percussion is used to help mobilize secretions in clients with conditions like pneumonia or cystic fibrosis. It is not a standard intervention for tuberculosis unless the client has coexisting pulmonary conditions that require airway clearance. C. Tuberculosis is transmitted via airborne particles, not droplets. Droplet precautions (used for pathogens like influenza or pertussis) are insufficient for TB. D. Airborne precautions are essential for clients with active TB. Nurses and other healthcare providers must wear a HEPA or N95 respirator when entering the client’s room to prevent inhalation of Mycobacterium tuberculosis. The client should be placed in a negative pressure room, and visitors should also follow airborne precautions.