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10 Cards in this Set
- Front
- Back
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How is CO poisoning dx'd?
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Co-oximetery
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What is the significance of a SPO2<90?
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PaO2 < 60 mmHg
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What is a normal ETCO2 [Vol%]?
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4-6 vol%
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What is a normal ETCO2 [torr]?
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35-45 torr
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What % CO2 does air contain?
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<0.1%
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How much CO2 do humans produce at rest [weight]?
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2.5 ml/kg/min
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What is the diffusion coefficient of CO2 relative to O2?
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20x greater
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What controls ventilation peripherally?
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The aortic and carotid bodies, where chemoreceptors respond to changes in CO2 and hypoxemia (esp < 50 torr)
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Do central chemoreceptors respond to hypoxemia?
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Yes, esp < 50 torr
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What is hypoxia?
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Reduction of O2 supply to a tissue
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