Acute renal failure

Acute renal failure is a clinical syndrome in which the urinary function of the kidney is drastically reduced due to the kidney itself or an extrarenal cause, resulting in severe disturbance of the internal environment of the body. Mainly manifested as oliguria or anuria, azotemia, hyperkalemia, and metabolic acidosis. Acute renal failure is a group of syndromes mainly characterized by rapid deterioration of renal function, retention of metabolites, disturbance of water electrolytes and acid-base balance caused by a variety of causes, including prerenal azotemia, nephrogenic and Acute renal failure caused by postrenal causes.

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