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How long can a dog be under anesthesia for spay and dental cleaning?

Updated On September 23rd, 2025

Pet's info: Dog | Yorkshire Terrier | Female | unspayed | 4 years and 11 months old | 17 lbs

for how long can a dog be put under anesthesia mine is 4 years old and tomorrow is her surgery both spaying and dental cleaning. But i was just wonder how long is too long for a dog her age.

1 Answer

Most Helpful Answer

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Answered By Allison Newth, VMD

Veterinarian

Published on July 17th, 2017

Age is less important than overall physical health. If her pre anesthesia bloodwork comes back normal and her physical examination is normal before her procedures, the risk of anesthesia complications are low. Of course no anesthesia is without risk, but in an otherwise healthy dog the risk is pretty low. Now I don't know what type of dental procedure she will end up needing. If it's just a cleaning it should be relatively quick, and a spay in a dog Aubree's size is generally a 30 minute procedure so hopefully she won't be under anesthesia for more than, maybe two hours. That is generally an acceptable anesthesia time for a healthy dog. Now if she needs a lot of dental extractions your vet may talk about doing them at a different time since she will be under for the spay tomorrow as well. I hope this is helpful, and I hope Aubree is on the road to recovery soon!

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