A nurse is providing discharge teaching about disease prevention to a client who has active tuberculosis. Which of the following should the nurse include?

Educating the client how to cover nose and mouth with tissues when coughing

Recommending the client may return to work after two negative sputum cultures

Instructing the client that he is no longer contagious after 1 week of medication therapy

Teaching the dent's family to wear protective masks while with the client