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Sudden confusion

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My Dad at 86 is an extremely active man and so always doing something and keeping busy. Two weeks ago he suddenly started to become quite confused which is so unlike him as he’s so astute and switched on. Blood and urine tests taken. There is an infection but not in the urine and they don’t know where the infection is coming from. My Dad is now into the third day of taking antibiotics but no change yet.

How long should we allow before we make another Drs apt as not too sure when these antibiotics should start having an effect. If it isn’t a urine infection then can any other type of infection cause this sudden confusion? So very concerned at the moment so any form of positive reply would be very much appreciated.

Many thanks


  • My Dad at 86 is an extremely active man and so always doing something and keeping busy. Two weeks ago he suddenly started to become quite confused which is so unlike him as he’s so astute and switched on. Blood and urine tests taken. There is an infection but not in the urine and they don’t know where the infection is coming from. My Dad is now into the third day of taking antibiotics but no change yet.

    How long should we allow before we make another Drs apt as not too sure when these antibiotics should start having an effect. If it isn’t a urine infection then can any other type of infection cause this sudden confusion? So very concerned at the moment so any form of positive reply would be very much appreciated.

    Many thanks

    My mother had a similar thing..in the end had to take 2 lots of antibiotics. The heightened confusion went away but quite slowly. My mum went back to Dr after 10 days I think for a check up. Important to keep hydrated after the infection.

    Hello natwillow and thank you for your reply. Was your mother also very tired and without much of an appetite too? Many thanks.

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