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Should I fast my dog before a dental blood test for anesthesia?

Updated on September 23rd, 2025

Pet's info: Dog | Mixed Breed Small (up to 22lb) | Male | neutered | 8 years and 8 months old | 10 lbs

Do i have to fast my dog before pre anestetic blood test? He has to get teeth cleaning and possibly extractions. I am a nervous wreck.

1 Answer

Most Helpful Answer

Dr. Leigh, DVM

Answered By Dr. Leigh, DVM

Veterinarian

Published on August 10th, 2017

It really depends on the exact blood work that is being done. If it is just a routine CBC and Chemistry profile then he probably doesn't need to be fasted. If the blood-work is being done the same day as the procedure then he should be fasted because of the procedure. You should probably call your vet for specific instructions. I am sure it is worrisome to put your dog under anesthesia but the benefits of cleaning the teeth and extracting the diseased teeth outweighs the risks of the anesthesia. As long as he is healthy, the risk is minimal.
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