Which of the following values are suggestive of acute tubular necrosis

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

Correct Answer: Urine sodium > 40 meq/L

Description: In acute tubular necrosis - Urine sodium ->40meq/L Urine osmolality -<350mosmol/L BUN /plasma creatinine=10-15:1 Urine creatinine/plasma creatinine-<20 Casts-muddy brown Ref:Harrison 20th edition pg no. 291

Category: Medicine

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