Which action will be the most effective for the nurse to take when an older patient presents with a decreased ability to cough and decreased alveolar surface area, and diffusion capacity is noted on the laboratory reports?
a. Assess for breathlessness caused by hypoxia,
b. Encourage increased rest periods during exercise.
c. Encourage the patient to cough and take deep breaths.
d. Assess the patient's level of consciousness and cognition.