This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
Test predicting the return of renal function in a patient with tumor lysis syndrome is ? 
Select and explain. 
A. Serum creatinine, B. Serum phosphate, C. Serum potassium, D. Serum Uric acid
D: Serum Uric acid
Answer: D: Serum Uric acid 
Explanation: Answer- D. Serum Uric acidThe prognosis of tumor lysis syndrome is excellent, and renal function recovers after the uric acid level is lowered to < l0 mg/dl.