I understand that UTI can exacerbate confusion and overall cognition. Can this also precipitate confusion in cognitively healthy individuals or those that r nomally asymtomatic? Upon antibiotic intervention, how rapidly does the confusion subside. Is it in hours or days?
The confusion can come with otherwise healthy people. Depending on severity - how long the UTI has been untreated - it could take several days to clear. My mother had them frequently and she never had any form of dementia (though she was a "nutcase", she had been that way all her life - the world revolved around her and owed her anything she wanted - narcissistic, manipulative, Munchausen's, etc but no dementia).
My FIL had UTI twice last year and one UTI this past May. But he had no extra confusion. Just usual Alzheimer's symptoms. He is quite serene with UTI given antibiotics. He does sleep more now and I think he slept all afternoon when he was on antibiotics for UTI.
He has more trouble with eating and breathing. Not everyone has UTI side effects like Deb's Mom or some other patients here. Maybe women are more vulnerable.
In my experience... it can cause confusion in a normaly heathy otherwise a-symptomatic person... but it is usually in the elder. Not sure if these are a-symtomatic (early stages) of cognitive decline or not. But the cognitive side of the UTI seems to be limited to the older/cognitively impaired set.
It can take a day, two, three, to show marked signs of improvement after the antibiotics takes effect. You also have to have the right antibiotic to treat the specific bacteria or the UTI will usually reoccur... and sometimes it does anyway... so follow up test are needed to be sure it is gone and not just better. Mom suffered from chronic recurring UTI for 18 months. It would flare up, antibiotics given, there was some improvement, then it would flare up again... repeatedly. She was on the wrong antibiotic for the infection. Just have them double check and culture to be sure it is gone