Acute kidney injury

What it means

Sudden loss of renal function, as manifested by decreased urine production, and a rise in serum creatinine or blood urea nitrogen concentration (azotemia).

Acute renal failure is usually classified into prerenal (response to severe volume depletion), intrinsic (response to acute cytotoxic, ischemic, or inflammatory insults) and postrenal (response to obstruction of the passage of urine) etiologies.

Rare diseases that can present with this58

The range is how often this sign appears among people diagnosed with each disease — it is not a probability of having any of them. Many of these signs also occur in common, non-rare conditions. A sign on this page is a conversation to have with a clinician, not a conclusion.

Part of the broader category

Also called: Acute kidney failure · Acute renal failure · AKI