DR KOST ANESTHESEA MACHINE EXAM QUESTIONS WITH
COMPLETE SOLUTIONS GUARANTEED PASS BRAND NEW
2025
What do you do if you have an issue with the machine during a
case - - CORRECT ANSWER - >- trouble shoot for 30 sec - 1 min
- Take the patient off and bag ventilate
What do you do with a malfunctioning machine - - CORRECT
ANSWER - >Take out of service
How many more times greater is misuse of the anesthesia gas
delivery equipment than equipment failure - - CORRECT
ANSWER - >3x, lack of familiarity with the equipment and a
failure to check machine function are the most frequent causes
What kind of gas is in the respiratory reserve bag - - CORRECT
ANSWER - >Not fresh gas, still has CO2
What agency sets the regulation for anesthesia machines - -
CORRECT ANSWER - >ASTM (American Society for Testing and
Materials) 1850,
Compressed gas is delivered in two ways - - CORRECT ANSWER
- >Compressed gas and via pipeline
,How is O2 manufactured by - - CORRECT ANSWER - >Fractional
distillation of liquified air. This is the most common method.
N2O is manufactured by - - CORRECT ANSWER - >The thermal
decompensation of ammonium nitrate. Must contain 99% N20
by volume
How are O2 and N20 stored - - CORRECT ANSWER - >O2 is
stored as a gas and N2O is stored as a liquid -N2,O2,air gas form
-CO2 - liquid
Compressed gas purity is regulated by who - - CORRECT
ANSWER - >Pharmacopeia of the United States (USP)
The transportation of compressed gas is regulated by who - -
CORRECT ANSWER - >Department of transpiration (DOT) - the
motor safety devision
-DOT regulates everything about cylinders (thickness,
construction, etc)
Tanks on the side of machine are used for what - - CORRECT
ANSWER - >Emergency and mobility (somewhere that does not
have pipeline availability)
Where are the valves on a cylinder - - CORRECT ANSWER -
>Attached to the neck of the cylinder via tapered thread
,Oxygen cylinder port is where - - CORRECT ANSWER - >the
gasses exit the cylinder from (point of exit)
Pressure relief device type - - CORRECT ANSWER - >Disc device
- a fragile disc or burst disc,
predetermined pressure is reached then the disc ruptures and
the contents are dispersed, all or nothing phenomenon
Fusible plug (woods metal) - bismuth, tin, cadmium, and lead,
low melting point, temp softens plug with resultant loss of
cylinder contents, plug melts, all or nothing phenomenon.
Pressure relief valve - opens at extreme pressures, spring
loaded device designed to reclose and prevent gas escape once
the condition returns to normal, not a all or nothing
phenomenon. Safest device
Conical depression - - CORRECT ANSWER - >Receives retaining
screw
What is the PSI of a full O2 tank - - CORRECT ANSWER - >1900 -
2200 (2000) = 660L
What is the PSI of a full N2O tank - - CORRECT ANSWER - >750 -
745 = 1590l
, Difference between gas and liquid in cylinder tanks - -
CORRECT ANSWER - >Gas psi will decrease when volume
decreases
Liquid psi will stay the sakes until liquid is gone
What is the only way to tell how much is left in a N2O tank - -
CORRECT ANSWER - >weigh it
you have 1000 psi in your O2 tank going at 6l how many
minutes do you have left - - CORRECT ANSWER - >1000 psi
approximately 330L
330L/6L flow = 55 min
Cylinder markings and labeling - - CORRECT ANSWER - >- not
supposed to be painted over, legible, do not cover, required by
DOT, must bear a label 2/3 the distance from the cylinder
bottom, have to check O2 cylinders every 2 years
How often do you have to check cylinders - - CORRECT
ANSWER - >- Inspection and internal hydrostatic pressure test
every 5 years, with special permit testing is performed every 10
yrs, tested to
1.66 of their service pressure
- an old test for this was the cylinder hammer ring test
What is the purpose of the pin index safety system - - CORRECT
ANSWER - >prevent interchangeability of cylinders on the
COMPLETE SOLUTIONS GUARANTEED PASS BRAND NEW
2025
What do you do if you have an issue with the machine during a
case - - CORRECT ANSWER - >- trouble shoot for 30 sec - 1 min
- Take the patient off and bag ventilate
What do you do with a malfunctioning machine - - CORRECT
ANSWER - >Take out of service
How many more times greater is misuse of the anesthesia gas
delivery equipment than equipment failure - - CORRECT
ANSWER - >3x, lack of familiarity with the equipment and a
failure to check machine function are the most frequent causes
What kind of gas is in the respiratory reserve bag - - CORRECT
ANSWER - >Not fresh gas, still has CO2
What agency sets the regulation for anesthesia machines - -
CORRECT ANSWER - >ASTM (American Society for Testing and
Materials) 1850,
Compressed gas is delivered in two ways - - CORRECT ANSWER
- >Compressed gas and via pipeline
,How is O2 manufactured by - - CORRECT ANSWER - >Fractional
distillation of liquified air. This is the most common method.
N2O is manufactured by - - CORRECT ANSWER - >The thermal
decompensation of ammonium nitrate. Must contain 99% N20
by volume
How are O2 and N20 stored - - CORRECT ANSWER - >O2 is
stored as a gas and N2O is stored as a liquid -N2,O2,air gas form
-CO2 - liquid
Compressed gas purity is regulated by who - - CORRECT
ANSWER - >Pharmacopeia of the United States (USP)
The transportation of compressed gas is regulated by who - -
CORRECT ANSWER - >Department of transpiration (DOT) - the
motor safety devision
-DOT regulates everything about cylinders (thickness,
construction, etc)
Tanks on the side of machine are used for what - - CORRECT
ANSWER - >Emergency and mobility (somewhere that does not
have pipeline availability)
Where are the valves on a cylinder - - CORRECT ANSWER -
>Attached to the neck of the cylinder via tapered thread
,Oxygen cylinder port is where - - CORRECT ANSWER - >the
gasses exit the cylinder from (point of exit)
Pressure relief device type - - CORRECT ANSWER - >Disc device
- a fragile disc or burst disc,
predetermined pressure is reached then the disc ruptures and
the contents are dispersed, all or nothing phenomenon
Fusible plug (woods metal) - bismuth, tin, cadmium, and lead,
low melting point, temp softens plug with resultant loss of
cylinder contents, plug melts, all or nothing phenomenon.
Pressure relief valve - opens at extreme pressures, spring
loaded device designed to reclose and prevent gas escape once
the condition returns to normal, not a all or nothing
phenomenon. Safest device
Conical depression - - CORRECT ANSWER - >Receives retaining
screw
What is the PSI of a full O2 tank - - CORRECT ANSWER - >1900 -
2200 (2000) = 660L
What is the PSI of a full N2O tank - - CORRECT ANSWER - >750 -
745 = 1590l
, Difference between gas and liquid in cylinder tanks - -
CORRECT ANSWER - >Gas psi will decrease when volume
decreases
Liquid psi will stay the sakes until liquid is gone
What is the only way to tell how much is left in a N2O tank - -
CORRECT ANSWER - >weigh it
you have 1000 psi in your O2 tank going at 6l how many
minutes do you have left - - CORRECT ANSWER - >1000 psi
approximately 330L
330L/6L flow = 55 min
Cylinder markings and labeling - - CORRECT ANSWER - >- not
supposed to be painted over, legible, do not cover, required by
DOT, must bear a label 2/3 the distance from the cylinder
bottom, have to check O2 cylinders every 2 years
How often do you have to check cylinders - - CORRECT
ANSWER - >- Inspection and internal hydrostatic pressure test
every 5 years, with special permit testing is performed every 10
yrs, tested to
1.66 of their service pressure
- an old test for this was the cylinder hammer ring test
What is the purpose of the pin index safety system - - CORRECT
ANSWER - >prevent interchangeability of cylinders on the
