After a lobectomy for lung cancer, the nurse instructs the client to perform deep-breathing exercises to: 1. Decrease blood flow to the lungs for rest and increased surface alveoli ventilation. 2....

After a lobectomy for lung cancer, the nurse instructs the client to perform deep-breathing exercises to:

1. Decrease blood flow to the lungs for rest and increased surface alveoli ventilation.

2. Elevate the diaphragm to enlarge the thorax so that the lung surface area available for gas exchange is increased.

3. Control the rate of air flow to the remaining lobe to decrease the risk of hyperinflation.

4. Expand the alveoli and increase lung surface available for ventilation.