Terry was diagnosed with acute kidney injury (AKI) and has an order for bed rest. Terry asks the nurse, "Why do I have to stay in bed? I feel fine." Which rationale supports the nurse's response?
1) Bed rest helps increase the blood return to the renal circulation
2) Bed rest reduces the metabolic rate during the acute stage
3) Bed rest aids in reduction of peripheral and sacral edema
4) Bed rest decreases the workload of the left heart