Hi, My mother was just diagnosed with acute kidney failure and was released from the hospital 2 days later. She was told by the doctors that she was severely dehydrated (even though she drinks a typical amount of water a day...4-12 oz. bottles) and told to drink plenty of water. Since she s been home she s been having the same symptoms that brought her to the E.R. The symptoms are fatigue, lethargy, pain in back, metallic taste in mouth, some mental confusion at times, and extremely dry and painful mouth. Should I bring her back to the ER or schedule an appointment with family doctor and try to get a referral to a specialist?