Anaesthetic machine functions

Question 1

What cylinder size is used for piped gases?

Answer 1

J (6800l) although sizes E and F are also common in veterinary practice

Question 2

What is a Bourdon Gauge?

Answer 2

Also known as the pressure gauge on gas cylinders

Question 3

What does the concentration of agent leaving a vaporiser depend on?

Answer 3

• temperature (both inside the vaporiser and in the environment)
• the surface area of the gas
• the volatility of the agent

Question 4

What is a flow splitting valve?

Answer 4

It allows control of the percentage of anaesthetic vapour delivered

Question 5

What is a Barnsley receiver?

Answer 5

A device part of an active scavenging system that prevents suction being applied to the patient and causing barotrauma