A Young Adult Patient Who Denies Any History of Smoking

A young adult patient who denies any history of smoking is seen in the clinic with a new diagnosis of chronic obstructive pulmonary disease (COPD) .It is most appropriate for the nurse to teach the patient about

A) á₂-antitrypsin testing.
B) use of the nicotine patch.
C) continuous pulse oximetry.
D) effects of leukotriene modifiers.