<prompt> Which of the following is so ATN?FENa 1renal failure index 1blood urea nitrogencr ratio 20urine osmolality 1.010  <response>: Ans c Blood urea nitrogencr ratio20Harrison 17 page no: 1756, table 273-2indicespre-renalAINUrine osmolality500350Urine sodium2040urineserum creatinine4020 1.21.2FENa11Renal failure index11Urine sp gravity1.0201 010 : 