A charge nurse is planning a room assignment for a client who has a productive cough, a questionable chest x-ray, and a positive Mantoux test. Room 208 is a private, negative-pressure airflow room; room 212 is a semi-private, positive-pressure airflow room; 214 is a negative-pressure, semi-private room; and room 216 is a private, positive-pressure airflow room. To which of the following rooms should the nurse assign the client?

The correct answer is D: 208. A client with a productive cough, questionable chest x-ray, and positive Mantoux test suggests tuberculosis (TB), a contagious airborne disease. The best room assignment is a private, negative-pressure airflow room like room 208 because negative pressure prevents contaminated air from escaping the room, reducing the risk of transmission to others. Room 212 (B) with positive pressure would push air out of the room, potentially spreading infection. Room 214 (A) is a semi-private room, risking exposure to other patients. Room 216 (C) with positive pressure would not contain the infectious particles within the room effectively. Therefore, room 208 is the most appropriate choice for this client to prevent the spread of TB.