A 28-year-old woman is admitted with sudden onset of periorbital edema, dark "cola-colored" urine, and decreased urine output over the past two days. Her blood pressure is 158/96 mmHg, and her serum creatinine is 2.1 mg/dL. The urinalysis reveals hematuria, proteinuria, and red blood cell casts. She reports having a sore throat approximately three weeks ago that resolved without treatment. What is the priority nursing intervention for this client?
- Place the client on strict bed rest and administer high-dose corticosteroids as ordered.
- Encourage increased oral fluid intake to flush the kidneys and reduce hematuria.
- Prepare the client for an immediate kidney biopsy to confirm the diagnosis.
- Monitor blood pressure closely and restrict dietary sodium and fluid intake.