It is impossible to determine if a dog's pH of 5 is bad without knowing what is being measured.
Here's why:
* pH is a measure of acidity or alkalinity. Different bodily fluids have different normal pH ranges. For example, a dog's urine pH can range from 5.5 to 7.5, while their blood pH should be around 7.35 to 7.45.
* A pH of 5 could be normal or abnormal depending on the context. For example, a urine pH of 5 might be normal, but a blood pH of 5 would be dangerously acidic.
If you are concerned about your dog's health, please contact your veterinarian immediately. They can perform the necessary tests and advise you on the best course of action.