As @laura1970 pointed out in the post 5 days ago (11/16?) hyponatremia (low sodium) can be associated with many things. I’ve only experienced this once in my life. I had been prescribed chlorthalidone for high blood pressure and it had a side effect of hyponatremia. My provider discontinued the med and switched me to something else. Problem solved. My mother also had hyponatremia of a more serious type and longer duration. She always had a fondness for water and drank copious amounts of it. She was in the hospital due to a broken leg and was consuming about 8 - 10 of those bedside carafes of water daily! Her sodium tanked! She was put on fluid restriction except for what was in the IV. A nephrologist was consulted and ordered up albumin by IV. It looked like egg white and had to be administered slowly. She also was having high blood pressure at the time and was diagnosed with congestive heart failure. At one point she had orders for NPO (nothing by mouth). She eventually was moved to a SNF (skilled nursing facility / home) for rehab. It was a very long ordeal but she did make it home after relearning healthy eating /drinking and how to walk. She started refusing to eat and we had to coax her by any means possible (authorized by her providers). I got her to try eating salty snacks like chips and nuts. She liked cracking pistachios. My brother bribed her to take # bites of food and then showing her another photo of the grandkids. She was never prescribed UREA. This was over 25 years ago I think. At that time she did not have a diagnosis of any type of dementia but it became painfully obvious that hyponatremia messes with a person’s mental capacity (“can’t straight think”!)