Causes of Acute Renal Failure: PRERENAL (Interference with renal perfusion) Factors: Volume depletion: hemorrhage, renal losses (diuretics, osmotic diuresis), GI losses (vomiting, diarrhea, NG suction), hypovolemia, decreased cardiac output (MI, HF, Dysrhythmias, cardiogenic shock), decreased renal perfusion (sepsis, anaphylaxis, BP meds or other meds that causes vasodilation.