How to Perform a Positive Pressure Leak Test on a Modified Bain Circuit

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April 2026

In this VETgirl online veterinary continuing education video, Amanda M. Shelby, RVT, VTS (Anesthesia & Analgesia) demonstrates how to perform a positive pressure leak check of a Modified-Bain anesthetic patient breathing circuit. Don’t forget to check the integrity of the inner tubing—a commonly overlooked but important step in the setup that’s not shown in this video.

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Setting up a circle system? Check out this video HERE!

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