Acute kidney failure occurs when your kidneys suddenly become unable to filter waste products from your blood. When your kidneys lose their filtering ability, dangerous levels of wastes may accumulate, and your blood’s chemical makeup may get out of balance.
Acute kidney failure also called acute renal failure or acute kidney injury — develops rapidly over a few hours or a few days. Acute kidney failure is most common in people who are already hospitalized, particularly in critically ill people who need intensive care.
Causes Of Acute Kidney Failure
Acute kidney failure can occur when:
- You have a condition that slows blood flow to your kidneys
- You experience direct damage to your kidneys
- Your kidneys’ urine drainage tubes (ureters) become blocked and wastes can’t leave your body through your urine