To prevent postoperative complications, the nurse assists the client with coughing and deep-breathing exercises. This is best accomplished by implementing which of the following? 1. Coughing exercises...

To prevent postoperative complications, the nurse assists the client with coughing and deep-breathing exercises. This is best accomplished by implementing which of the following?

1. Coughing exercises 1 hour before meals and deep breathing 1 hour after meals

2. Forceful coughing as many times as tolerated

3. Huff coughing every 2 hours or as needed

4. Diaphragmatic and pursed-lip breathing 5 to 10 times, four times a day