: Damage to the kidney tissues from infections, toxins (nephrotoxic drugs), or autoimmune diseases.
: Most common; caused by issues "before" the kidney, such as severe dehydration, shock, low blood pressure, or heart failure. acute renal failure
: Blockages "after" the kidney, such as kidney stones, enlarged prostate, or tumors that prevent urine drainage. Acute Kidney Injury - StatPearls - NCBI Bookshelf : Damage to the kidney tissues from infections,