Managing High Urine pH After a UTI in a Chihuahua
by Tasha C.
(Plainview, TX, USA)
It’s good that you’re keeping track of her pH. Urine often becomes more alkaline for a few hours after a meal, so a reading around 8 after eating doesn’t always mean a problem. Persistently alkaline urine can matter, though, because some bacteria raise urine pH and alkaline urine favours struvite stones. Ask your vet to repeat the urinalysis and culture once she has finished treatment, ideally on a sample taken at a consistent time, to confirm the infection has cleared.
Your second vet’s caution about cranberry is reasonable. Studies haven’t shown that cranberry prevents urinary infections in dogs, so you aren’t missing out by stopping it. Adding water to her food is a helpful habit, because more dilute urine is less likely to form crystals.
Changing her diet to adjust urine pH is best done with your vet’s guidance, since pushing pH too far the other way can raise the risk of other stones. The trace protein may be linked to the recent infection, so ask whether it should be rechecked once her urine is clear.
Our page on recurrent bladder infections in dogs explains the follow-up that helps prevent another infection.
This is general information, not a diagnosis. Please follow your own vet's advice.