<prompt> Which test can predict the return of renal function in a patient with the tumor lysis syndrome?Serum creatinineSerum phosphateSerum potassiumSerum Uric acid  <response>: Tumor lysis syndrome Renal function recovers after the uric acid level is lowered to 10 mgdL. Because increased urine flow rates help to inhibit crystal deposition in renal tubules, close monitoring of urine output is necessary to assess the adequacy of hydration. 