Dr. Kost Anesthesia Machine – Qs And As
Question : 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
Question : What do you do with a malfunctioning machine
Correct answer: Take out of service
Question : 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
Question : What kind of gas is in the respiratory reserve bag
Correct answer: Not fresh gas, still has CO2
Question : What agency sets the regulation for anesthesia
machines
Correct answer: ASTM (American Society for Testing and
Materials) 1850,
Question : Compressed gas is delivered in two ways
Correct answer: Compressed gas and via pipeline
Question : How is O2 manufactured by
Correct answer: Fractional distillation of liquified air. This is
the most common method.
Question : N2O is manufactured by
Correct answer: The thermal decompensation of ammonium
nitrate. Must contain 99% N20 by volume
Question : 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
Question : Compressed gas purity is regulated by who
Correct answer: Pharmacopeia of the United States (USP)
Question : 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)
Question : Tanks on the side of machine are used for what
Correct answer: Emergency and mobility (somewhere that
does not have pipeline availability)
Question : Where are the valves on a cylinder
Correct answer: Attached to the neck of the cylinder via
tapered thread
Question : Oxygen cylinder port is where
Correct answer: the gasses exit the cylinder from (point of
exit)
Question : 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