I was told this tip by a South African Vet.. Not sure if it has been scientifically researched, but seems to work!

When judging what size of E.T tube to select for a canine patient, take the tube and measure it's width against the gap between the dog's nostrils. (hold the end that attaches to anaesthetic machine and rest the soft end against dog's nose).

Some dogs are easy to guess the tube size on, but others can be deceiving, this trick strangely works, try it and see! I normally select one size up and one size down to have on hand just in case..

PS: Whilst you're here, take a moment to see our latest job opportunities for vet nurses.