Acute renal failure is a nonspecific syndrome of various etiologies that develops in connection with a sudden shutdown of the homeostatic functions of the kidneys, which is based on hypoxia of the renal tissue, followed by the primary damage to the tubules and the development of interstitial edema. The syndrome manifests itself as increasing azotemia, electrolyte imbalance, decompensated acidosis and impaired ability to release water.