ANESTHESIA MACHINE TEST QUESTIONS &
ANSWERS
Compressed gas cylinders - Answer -Supplies carrier gases. (oxygen and sometimes
nitrous oxide)
Tank pressure gauge - Answer -Device attached to the yoke of a machine that
indicates the pressure of gas remaining in a compressed gas cylinder.
pressure-reducing valve - Answer -located near the tank pressure gauge. Reduces the
pressure of the gas to a constant safe operating pressure of 40 to 50 psi.
Line-pressure gauge - Answer -Indicates the pressure in the intermediate-pressure gas
line between the pressure-reducing valve and flow meters.
Flow meter - Answer -A vertical glass cylinder of graduated diameter with a valve
attached to the bottom. Reduces the pressure of the gas in the intermediate-pressure
line from 50 to 15 psi
Oxygen flush valve - Answer -When activated it will rapidly deliver a large volume of
pure oxygen at a flow rate of 35 to 75 L/min directly from the line exiting the pressure-
reducing valve in to the common gas outlet.
Vaporizer inlet port - Answer -The point where oxygen and any other carrier gases
enter the vaporizer from the flow meter.
Vaporizer outlet port (and common gas outlet) - Answer -Fittings to which a hose
connects. The point where the oxygen, inhalant anesthetic, and N2O exit the vaporizer
on the way to the breathing circuit.
Fresh gas inlet - Answer -The point at which the carrier and anesthetic gases enter the
breathing circuit.anesth
unidirectional valves - Answer -Control the direction of gas flow through the rebreathing
circuit as the patient breathes.
pop-off valves - Answer -The point of exit of anesthetic gases from the breathing circuit.
reservoir bag - Answer -A rubber bag, often black or green, which serves as a number
of functions.
- flexible storage reservoir, allows the anesthetist to observe the animal's respirations,
may be used to confirm proper ET tube placement, allows deliver of anesthetic gases to
the patient.
ANSWERS
Compressed gas cylinders - Answer -Supplies carrier gases. (oxygen and sometimes
nitrous oxide)
Tank pressure gauge - Answer -Device attached to the yoke of a machine that
indicates the pressure of gas remaining in a compressed gas cylinder.
pressure-reducing valve - Answer -located near the tank pressure gauge. Reduces the
pressure of the gas to a constant safe operating pressure of 40 to 50 psi.
Line-pressure gauge - Answer -Indicates the pressure in the intermediate-pressure gas
line between the pressure-reducing valve and flow meters.
Flow meter - Answer -A vertical glass cylinder of graduated diameter with a valve
attached to the bottom. Reduces the pressure of the gas in the intermediate-pressure
line from 50 to 15 psi
Oxygen flush valve - Answer -When activated it will rapidly deliver a large volume of
pure oxygen at a flow rate of 35 to 75 L/min directly from the line exiting the pressure-
reducing valve in to the common gas outlet.
Vaporizer inlet port - Answer -The point where oxygen and any other carrier gases
enter the vaporizer from the flow meter.
Vaporizer outlet port (and common gas outlet) - Answer -Fittings to which a hose
connects. The point where the oxygen, inhalant anesthetic, and N2O exit the vaporizer
on the way to the breathing circuit.
Fresh gas inlet - Answer -The point at which the carrier and anesthetic gases enter the
breathing circuit.anesth
unidirectional valves - Answer -Control the direction of gas flow through the rebreathing
circuit as the patient breathes.
pop-off valves - Answer -The point of exit of anesthetic gases from the breathing circuit.
reservoir bag - Answer -A rubber bag, often black or green, which serves as a number
of functions.
- flexible storage reservoir, allows the anesthetist to observe the animal's respirations,
may be used to confirm proper ET tube placement, allows deliver of anesthetic gases to
the patient.
