https://www.google.com/search?q=acute+vs.+chronic+renal+failure&source=lnms&tbm=isch&sa=X&ved=0ahUKEwiyhJmqq9LeAhXGrVkKHeKMD2oQ_AUIEygB&biw=1440&bih=745#imgrc=7_hSTRMSKZiGPM: