試題詳解

19. For diagnosis of acute renal failure, which urinary indices indicating prerenal azotemia rather than acute tubular necrosis or obstruction ?
(A) Urine Na > 40 mEq/L
(B) Urine osmolarity < 400
(C) Urine/plasma creatinine ratio < 20
(D) Renal failure index < 1
(E) FENa > 2%