Medicine Which differentiating prerenal azotemia with ATN features favoring pre-renal azotemia -a) Urine osmolality > 500 mosmol/kgb) Sodium spot excretion 1d) Plasma BUN/creatinine ratio < 20 A ac B a C ab D bc 💡 Explanation Which differentiating prerenal azotemia with ATN features favoring pre-renal azotemia -a) Urine osmolality > 500 mosmol/kgb) Sodium spot excretion 1d) Plasma BUN/creatinine ratio < 20 ✓ Correct Answer: C. ab