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Does my dog or cat need to fast before a vet blood test appointment?

Updated On September 23rd, 2025

Pet's info: Cat | Domestic Shorthair | Male | neutered | 17 years and 7 months old | 9.5 lbs

Fasting for bloodwork?

1 Answer

Most Helpful Answer

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Answered By Lindsey Edwards MVB, BSc, IVCA

Veterinarian

Published on August 4th, 2017

This depends on what they blood work is trying to investigate. For biochemistry tests, especially liver and kidney tests then fasting for 12hours is often recommended, tests for infection are less affected by a recent meal. Contact your vets office to confirm

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