1. How to handle a fierce cat for neuter? 2. Using an anaesthetic gas machine
Channel: Dr David Sing
Date: 2016-01-08

Jan 7, 2016. 
This educational video shows 2 methods of sedating a fierce cat.
1. An assistant holdd the carrier vertically such that the cat is nearer to the door of the carrier. When the cat's backside is near to the door, the vet injects the sedative intra-muscularly into the back muscles. Another assistant taps the top end of the crate to distract the cat just before the injection.
2. Bag the carrier and pass the isoflurane gas into the carrier till the cat is sedated. 

The 2nd part of the video shows 3 ways an anaesthetic machine is used to deliver isoflurane gas, depending on the valve. A closed method saves most gas which is re-cycled. An open method lets gas escape into the scavenger. I note that many new vet graduates use the open method.