Source : (Niddk.nih.gov, 2019) ETIOLOGY OF ACUTE KIDNEY DISEASE Diseases or conditions like: Acute Tubular Necrosis (ATN) Autoimmune kidney diseases Septicemia Urinary tract obstruction Acute Pyelonephritis Kidney injury from specific toxic medications Severe or sudden dehydration Reduced blood flow in kidneys due to septic shock, hypotension, low blood pressure, dehydration and more.