My father as severe dementia. He has limited speech but can communicate a little bit. He has been admitted to a terrible hospital for urinary retention where they put in a catheter (after many tries and much pain). They have had him there for 3 days now with minimal answers to any of our questions about how long (we are there round the clock), what they will do next, and when and if we can take him home (if there is a wait for a prostate procedure). We called an alternate hospital and they have said it is our responsibility to keep his catheter in and that they will not admit him if we get him to their emergency room. We are very confused about how to get him out of there, home, rent a hospital bed, get a nurse, and keep him sedated enough to keep the catheter in and get him out of there. He is weakening every day!
Remember your Dad has only been in the hospital for 3 days, it takes time to run tests and get results, especially if there is an infection, and especially if the patient is elderly. For your Dad's well being, let the professionals do their job without a lot of interference from the family.