A Patient with Chronic Bronchitis Has a Nursing Diagnosis of Impaired

A patient with chronic bronchitis has a nursing diagnosis of impaired breathing pattern related to anxiety. Which nursing action is most appropriate to include in the plan of care?

A) Titrate oxygen to keep saturation at least 90%.
B) Discuss a high-protein, high-calorie diet with the patient.
C) Suggest the use of over-the-counter sedative medications.
D) Teach the patient how to effectively use pursed lip breathing.