Medicine Which of the following values are suggestive of acute tubular necrosis – A Urine osmolality > 500mosmol/L H20 B Urine sodium > 40 meq/L C Blood urea nitrogen/ plasma creatinine > 20:1 D Urine creatinine/plasma creatinine > 40 💡 Explanation Which of the following values are suggestive of acute tubular necrosis - ✓ Correct Answer: B. Urine sodium > 40 meq/L