During preoperative preparation, the practical nurse (PN) should offer the client which explanation about why deep breathing exercises with an incentive spirometer are necessary after surgery?

Incentive spirometry is uncomfortable but necessary for your postoperative care.

Deep breathing exercises using the spirometer will help prevent postoperative complications.

Failure to keep your lungs working may result in pneumonia and death.

You will use the spirometer for the first postoperative day only.