A nurse is caring for a client who recently had a streptococcal infection of the throat, and is now experiencing new-onset flank pain. Urinalysis is positive for proteinuria and hematuria. The client's urine output for the past 24 hours has been 250 mL, and BUN and creatinine are elevated. On assessment, the nurse notes pitting edema to the bilateral lower extremities. Which of the following interventions is appropriate Propriety for this client is appropriate in the plan of care?