A client scheduled for a CT scan of the abdomen with contrast has a baseline creatinine level of 2.3 mg/dL. In preparing this client for the procedure, the nurse anticipates what orders?

A. Preprocedure hydration with 0.45% NaCl may be considered, but isotonic fluids like 0.9% NaCl are generally preferred to help flush the contrast agent. B. Administration of acetylcysteine is commonly ordered to help reduce the risk of contrast-induced nephropathy in clients with elevated creatinine levels. C. Hemodialysis prior to the CT scan is not routinely performed unless the client is already dialysis-dependent. D. Creatinine clearance via 24-hour urine is not an urgent pre-procedure requirement; the elevated serum creatinine already indicates impaired renal function.