A patient has developed acute renal failure (ARF) with a 24-hour urine output of 350 ml. The nurse should assess the patient for:
Explanation
• Serum potassium rises as urine output decreases. This puts the patient at risk for cardiac arrhythmias
• Pruritus can occur from hyperphosphatemia, but this is less severe than cardiac arrhythmias
• Tetany occurs due to hypocalcemia or hyperphosphatemia
• Polyphagia does not occur with ARF