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My dog's blood test shows high ALP. Are infections the cause?

Updated On September 23rd, 2025

Pet's info: Dog | Bull Terrier | Male | neutered | 10 years and 10 months old | 59 lbs

Hello! 10 year old bull terrier's blood test results showed very high level of Alkaline: 704. Previous blood test was 6 months ago and did not show high level ALP He is currently being treated for a bronchitis + a tooth infection. Can these bacterial infections cause the high level of ALP? I know there can be lots of other causes for high ALP levels. But before doing an ultra sound + another blood test, shouldn't we wait to cure the infections first? and then test again for high ALP levels?

1 Answer

Most Helpful Answer

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Answered By Daniel Fonza, DVM

Veterinarian

Published on January 11th, 2018

Hi there and thank you for using Petco Pet Education Center, formerly Petcoach to address your concern. Unfortunately ALP is such a vague value and does not tell us much in the way of specific diseases that it is not a very useful value. In older dogs with a high ALP, this may be a normal finding not related to any disease. Cushing's disease can cause an elevated ALP along with many other causes. If the ALP continues to rise or does not resolve, I would consider testing for Cushing's disease and have an abdominal ultrasound performed. Bronchitis and a tooth infection generally would not cause an increase in this value in my experience. I hope this helps! Please let me know if you have any other questions or concerns and I would be more than happy to help you further.

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