Physiology A 65 years old male is having weight 60kg and serum creatining 3mg/d1. What is creatinine clearance A 5 B 10 C 15 D 20 💡 Explanation A 65 years old male is having weight 60kg and serum creatining 3mg/d1. What is creatinine clearance ✓ Correct Answer: D. 20