A postoperative client asks the nurse why performing leg exercises is important. The nurse is correct in stating that leg movement that involves contracting and relaxing leg muscles helps to prevent...

A postoperative client asks the nurse why performing leg exercises is important. The nurse is correct in stating that leg movement that involves contracting and relaxing leg muscles helps to prevent which of the following?

1. Developing varicose veins

2. Formation of blood clots

3. Loss of muscle strength

4. Swelling of the extremities