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10 Cards in this Set
- Front
- Back
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What is the henderson-hasselbach equation?
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pH=pKa+Log(base/acid)
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What is the henderson-hasselbach equation in vivo?
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pH=6.1+log([HCO3-]/[0.03 x pCO2]), where 0.03 is the solubility of CO2 in blood
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What is dalton's law?
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Sum of all partial pressures = total pressure (usually 1 atm)
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What is pO2 in the atmosphere?
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159 mmHg
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What is pO2 in the lungs?
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104 mmHg
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What is pCO2 in the atmosphere?
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3 mmHg
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What is pCO2 in the lungs?
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40 mmHg
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what is pH2O in the atmosphere?
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0 mmHg
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What is pH2O in the lungs?
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47 mmHg (
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Why does the pO2 drop as air enters the lungs?
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Additional water vapor is added. Because the total pressure stays constant, and pH2O increases, pO2 must decrease
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