The nurse elevates the legs of the patient with congestive heart failure who has significant dependent edema. Which rationale does the nurse give the patient for this intervention?

The older adult patient recently diagnosed with a spinal cord injury and limited mobility is referred to a physical therapist to discuss using a wheelchair for increased mobility. The patient asks the nurse, “Do I really have to see the physical therapist? I broke my leg as a kid and used one then.” Which response by the nurse is appropriate?

The nurse encourages the patient who works the night shift to hang blackout curtains in the bedroom to promote sleep. The nurse makes this recommendation based on an understanding of which physiologic process?