Final answer:
For a hemodynamically unstable patient needing to remove large volumes of fluid, the expected treatment would be continuous renal replacement therapy (CRRT).
Step-by-step explanation:
For a patient who is hemodynamically unstable and needs to remove large volumes of fluid, the nurse should expect continuous renal replacement therapy (CRRT) to be used as the treatment. CRRT is a form of dialysis that provides a slower and continuous removal of waste products and fluid from the blood. It is often used in critically ill patients who cannot tolerate the rapid changes in fluid and electrolyte balance that can occur with hemodialysis or peritoneal dialysis.