My Dad has been admitted to hospital this week with a suspected UTI well that is what they are treating him for, but he has delirium and quite violent with it, though he was a person with a temper before He was violent towards the staff and myself. They are giving him antibiotics, but his blood tests show not infection indicators, we are not allowed to see him, not due to the Covid restrictions but as they think he will get aggressive and the need to keep him calm. They have sedated him with Lorazepam. They say how long Delirium lasts is like a piece of string, days, weeks, months or you never recover. Dad had shown dementia tendencies, but he did not want to be assessed so if it is it is undiagnosed. I am concerned if his delirium continues and the next course of action.