A nurse is caring for a client who has chronic obstructive pulmonary disease (COPD). The client tells the nurse, "I can feel the congestion in my lungs, and I certainly cough a lot, but I can't seem to bring anything up." Which of the following actions should the nurse take to help this client with tenacious bronchial secretions?
Maintaining a semi-Fowler's position as often as possible
Administering oxygen via nasal cannula at 2 L/min
Helping the client select a low-salt diet
Encouraging the client to drink 2 to 3 L of water daily
