Notes in 04 Anesthesia Workstation

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Published	12/13/2023	The Link-25TM system couples oxygen gas flow to nitrous oxide to ensure a minimum oxygen concentration of {{c1::25}}%
Published	12/13/2023	The ventilator spill valve is {{c1::closed}} during inspiration.
Published	12/13/2023	When using cylinders for anesthesia gas machines, {{c1::primary regulators::machine component}} reduce the cylinder gas pressure to 45-47 psig.
Published	12/13/2023	The {{c1::nitrous oxide}} shutoff valve is pressurized by {{c2::oxygen}}.
Published	12/13/2023	All machines also have an {{c1::oxygen::gas}} supply low pressure sensor that activates alarm sounds when inlet gas pressure drops below {{c2::28}}-{{…
Published	12/13/2023	The first part of the low-pressure circuit on the anesthesia gas machine is the {{c1::flowmeter}}.
Published	12/13/2023	Vapor pressure depends on the characteristics of the volatile agent and the {{c1::temperature}}
Published	12/13/2023	The boiling point of a liquid is the temperature at which {{c1::vapor}} pressure is equal to {{c1::atmospheric}} pressure.
Published	12/13/2023	In a {{c1::variable-bypass}} vaporizer, a small fraction of the total gas flow is diverted into the vaporizing chamber.
Published	12/13/2023	In a variable-bypass vaporizer, the {{c1::bimetallic}} strip alters gas flow to compensate for fluctuations in {{c2::temperature}}.
Published	12/13/2023	In the event of tilting and spillage, {{c1::high flow of oxygen}} with the vaporizer turned off should be used to vaporize and flush the liquid anesth…
Published	12/13/2023	The selected MAC should be {{c1::not changed::increased/decreased}} at high altitudes when a conventional vaporizer is being used.
Published	12/13/2023	{{c1::Desflurane}} has the highest volatility of all inhaled anesthetics, so it requires a special pressurized, heated vaporizer (TEC 6).
Published	12/13/2023	Inappropriate use of the flush valve may result in backflow of gases into the low-pressure circuit, causing {{c1::dilution}} of inhaled anesthetics.
Published	12/13/2023	A leak in the {{c1::ventilator bellows}} can transmit high gas pressure to the patient’s airway, potentially resulting in pulmonary {{c2::barotrauma}}…
Published	12/13/2023	The ventilator contains its own pressure-relief (pop-off) valve, called the {{c1::spill valve}}, which is pneumatically closed during inspiration so t…
Published	12/13/2023	During inspiration, the {{c2::drive}} gas compresses the bellows and {{c1::closes::closes/opens}} the spill valve, allowing for fresh gas to reach the…
Published	12/13/2023	The oxygen flush valve should not be used during the {{c1::inspiratory}} cycle can lead to {{c2::barotrauma}}.
Published	12/13/2023	{{c1::Waste-gas scavengers::component}} dispose of gases that have been vented from the breathing circuit by the APL valve and ventilator spill valve
Published	12/13/2023	To avoid the buildup of pressure in the circuit, excess gas volume is vented through the {{c1::APL valve}}.
Published	12/13/2023	The non-interchangeable {{c1::diameter-index}} safety system prevents the incorrect attachment of hoses to the anesthesia gas machine.
Published	12/13/2023	The Link-25TM proportioning system turns on when the nitrous oxide flow is at least {{c1::three}} times that of oxygen.
Published	12/13/2023	When the power is off, oxygen pressure allows the {{c1::pneumatic outlets}} and {{c2::oxygen flush button}} to continue functioning.
Published	12/13/2023	The {{c1::primary regulator}} is the last portion of the high-pressure system in the anesthesia gas machine.
Published	12/13/2023	In a Thorpe-type flowmeters, the float is suspended by the flow of gas through a {{c1::tapered::shape}} tube.
Published	12/13/2023	The {{c1::second-stage}} pressure regulator is the last portion of the intermediate-pressure circuit, reducing the pressure from 50 psi to {{c2::30}} …
Published	12/13/2023	Increases in temperature inside the vaporizer will cause the bimetallic strip to bend and allow {{c1::less::more/less}} gas to pass through the vapori…
Published	12/13/2023	Decreases in temperature inside the vaporizer will cause the bimetallic strip to bend and allow {{c1::more::more/less}} gas to pass through the vapori…
Published	12/13/2023	Desflurane vaporizers are electrically heated to {{c1::39}}°C.
Published	12/13/2023	Desflurane vaporizers need to reach the correct {{c1::temperature}} and {{c1::pressure}} before use.
Published	12/13/2023	{{c1::Active}} scavenge systems are connected to the hospital's vacuum system, while {{c1::passive}} scavenge systems are connected to a ventilation d…
Published	12/13/2023	If older vaporizers tilt, anesthetic agents may be spilled into the {{c1::bypass}} area, which can lead to dangerously high anesthetic concentrations.…
Published	12/13/2023	Desflurane vaporizers are electrically pressurized to {{c1::2}} ATM.
Published	12/13/2023	The selected MAC should be {{c1::increased::increased/decreased}} at high altitudes when a desflurane vaporizer is being used…
Published	12/13/2023	The intermediate pressure system starts at the pipeline and ends at the {{c1::flowmeter valves}}.
Published	12/13/2023	The low pressure system starts at the {{c2::flowmeter tubes}} and ends at the {{c1::common gas outlet}}.
Published	12/13/2023	When the oxygen pressure drops below {{c1::20}} psi, the flow of nitrous oxide is reduced or stopped.
Published	12/13/2023	The {{c1::annular}} space is the area between the {{c2::widest}} part of the float and the sidewall of the flowmeter.
Published	12/13/2023	The {{c1::oxygen}} flowmeter is positioned furthest to the right, downstream to all other gases.
Published	12/13/2023	Fail-safe devices will not detect a {{c1::pipeline crossover}} because they are dependent on pipeline pressure, not oxygen concentration.
Published	12/13/2023	The oxygen flush button delivers {{c1::100}}% O2 at a flow of {{c2::35}}-{{c2::75}} L/min and a pressure of {{c3::50}} psi.
Published	12/13/2023	During expiration, the {{c2::exhaled}} gas refills the bellows and {{c1::opens::closes/opens}} the spill valve, allowing for the exit of gas from the …
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