<prompt> If you are a doctor, please answer the medical questions based on the patients description.what causes kidney failure?any idea?  <response>: Kidney failure can occur from an acute situation or from chronic problems. In acute renal failure, kidney function is lost rapidly and can occur from a variety of insults to the body. The list of causes is often categorized based on where the injury has occurred. Prerenal causes prebefore renalkidney causes are due to decreased blood supply to the kidney. Examples of prerenal causes are: Hypokalemia low blood volume due to blood loss Deny Chat Doctor. Loss of blood supply to the kidney due to obstruction of the renal artery or vein. Renal causes damage directly to the kidney itself include: Sepsis: The bodies immune system is overwhelmed from infection and causes inflammation and shutdown of the kidneys. This usually does not occur with urinary tract infections. Medical 