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Systems Lecture 5 Material
Final/Practical material for Quarter 1 AA students
15
Other
Graduate
09/07/2010

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Cards

Term
Compliance Equation
Definition
C= V/P
Term
Where are the compliance losses in the breathing circuit?
Definition
distensible tubing
compressible gas
Term
Equation for lung volume
Definition
lung volume= Tidal vol. - compliance loss
Term
Does dead space occur with unidirectional flow or bidirectional flow?
Definition
bidirectional flow, but both have compliance losses
Term
Composition of Soda Lime
Definition
80% Calcium Hydroxide
4% Sodium Hydroxide
1% Potassium Hydroxide
15% Water
Term
How much CO2 will 100 grams of soda lime absorb?
Definition
15L CO2
Term
How much soda lime does a typical single canister contain?
Definition
1350g
Term
What are the byproducts of the Soda Lime reaction?
Definition
Heat & Water
Term
Wall effect on CO2 absorption
Definition
gas travels along the periphery of the canister instead of evenly throughout.
Term
Channeling effect on CO2 absorption
Definition
gas flows through less resistant pathways in the absorbant.

Due to poor packing
Term
Resistance in CO2 absorber
Definition
optimal packing creates pressure drop of 1.5cmH2O at 100L/min flow
Term
Dusting effect from CO2 absorber
Definition
dust from absorber may be inhaled and cause laryngospasm, bronchospasm, or pnuemonia
Term
Which agent breaks down the least in soda lime and which one breaks down the most?
Definition
Des-breaks down the least
Sevo-breaks down the most
Term
Which agent produces more carbon dioxide in soda lime, desflurane or isoflurane?
Definition
Desflurane
Term
Carbon monoxide levels highest with:
Definition
baralyme
high temps
dry absorbant
high concentrations
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