Acute: Renal Failure

: Most common; caused by issues "before" the kidney, such as severe dehydration, shock, low blood pressure, or heart failure.

: Blockages "after" the kidney, such as kidney stones, enlarged prostate, or tumors that prevent urine drainage. Acute Kidney Injury - StatPearls - NCBI Bookshelf acute renal failure

: Passing very little or no urine, though output can occasionally remain high. : Most common; caused by issues "before" the

Acute kidney injury (AKI), previously known as , is a sudden, temporary, and often reversible loss of kidney function. It can range from a minor loss of function to complete kidney failure and often results from an underlying condition that disrupts blood flow, causes direct organ damage, or blocks urine output. Key Symptoms and Warning Signs Acute kidney injury (AKI), previously known as ,

: Damage to the kidney tissues from infections, toxins (nephrotoxic drugs), or autoimmune diseases.