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8 Cards in this Set
- Front
- Back
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What is the afferent limb of the breathing system?
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That part of the breathing system which delivers the fresh gas from the machine to the patient.
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The Mapleson A, B, C and Lack’s systems are called afferent reservoir systems (ARS). Why?
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The reservoir is placed on
the afferent limb. |
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What is the efferent limb of the breathing system?
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That part of the breathing system which carries expired gas from the patient and vents it to the atmosphere through the expiratory valve/port.
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If the reservoir is placed in the efferent limb of the breathing system, they are called efferent reservoir systems (ERS). Give 4 examples of efferent breathing systems.
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Mapleson D, E, F and Bain systems,
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How is efficiency determined in non-CO2 absorbent breathing system?
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The efficiency is determined in terms of carbon-dioxide elimination and FGF utilization.
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For spontaneous breathing, rate the Mapleson A, B, C & D breathing systems
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A>D>C>B
“all dogs can bite” |
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For controlled breathing, rate the Mapleson A, B, C & D breathing systems
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D>B>C>A
“dead bodies can’t argue” |
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How is rebreathing of gas managed in the non-CO2 absorber breathing systems and what are their disadvantages?
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They rely on FGF to reduce rebreathing of gas.
Problems: Wasteful Loss of heat Loss of moisture |
