<prompt> Decreased fractional excreion of sodium is caused by -Prerenal azotemiaCoical ischemiaGlomerulonephritisRenal tubular acidosis  <response>: FeNafractional excretion of sodium is - 1 in prenal azotemia Early in the course of sepsis associated AKI. Rhabdomyolysis ,hemolysis associated AKI Contrast nephropathy 1 in Ischemia associated AKI in the late course of sepsis associated AKI Tubular injury or ATN. Ref:Harrison 20 th edition pg no 2105 tab -304.1 