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10 Cards in this Set
- Front
- Back
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What is a normal A-aDO2 gradient?
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10 mmHg
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What is the A-aDO2 gradient at FiO2 of 100%?
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30-50 mmHg, d/t anatomic shunt
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What is the respiratory exchange ratio?
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VCO2/VO2 (nml 0.8)
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What is Pam's shunt method?
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A-aDO2/20 mmHg = % shunt
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Is a/A ratio dependent on FiO2?
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No
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What is a normal a/A ratio?
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>0.75
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What are the detrminants of blood O2 transport?
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Cardiac output, Hgb, Hb affinity for O2 (SaO2)
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How much does 1g Hb carry?
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1.34 ml
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Does O2 bound to Hb have a partial pressure?
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No
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What relationship does the oxyhemoglobin dissociation curve describe?
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O2 tension (PO2) and saturation
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