Acute renal failure

Acute renal failure (ARF) refers to the destruction of renal function that occurs within hours to days, resulting in nitrogenous waste retention of blood and decreased urine output. Unfortunately, there is currently no accepted definition of acute renal failure. Some scholars suggest that the serum creatinine concentration is 50% above the baseline or> 0.5mg / dL. Others believe that dialysis is considered to be acute renal failure. Compared with chronic renal failure, the consequences of acute renal failure are more serious, because patients do not have the opportunity to mobilize the adaptation mechanism during acute renal failure and have no time to compensate. There are broad and narrow sense of acute renal failure. Acute kidney failure in the broad sense can be divided into three categories: prerenal, renal, and postrenal. Narrow sense of acute renal failure refers to acute tubular necrosis.

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