Which of the following is s/o ATN?: (A) FENa <1, (B) renal failure index <1, (C) blood urea nitrogen/cr ratio <20, (D) urine osmolality >1.010
Answer is C. Ans c (Blood urea nitrogen/cr ratio<20)Harrison 17 page no: 1756, table 273-2indicespre-renalAINUrine osmolality>500<350Urine sodium<20>40urine/serum creatinine>40<20 >1.2>1.2FENa<1>1Renal failure index<1>1Urine sp gravity>1.020<1 010 :