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Stack #121551

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Question
Answer
ODC shift left   More alkalosis, less DPG, hemoglobin has more affinity for O2, P50 decreases, Hgb is more saturated at a given PO2.  
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ODC shift right   More acidic, more DPG, hemoglobin has less affinity for O2, P50 increases, Hgb is less saturated at a given PO2.  
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Normal P50   27mmHg  
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CO2 diffusion rate   20 times faster than O2  
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Dead space   anatomic 1ml per pound, alveolar dead space can not be calculated, physiological dead space the sum of alveolar and anatomical deadspace.  
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Anatomic Shunt (true shunt)   The portion of cardiac output that enters the left side of the heart without comming in contact with an alveolus for gas exchange.  
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Causes of Anatomic Shunts   Congenital heart disease, Intrapulmonary fistula, Vascular tumors.  
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Capillary Shunt (true shunt)   No gas exchange at alveoli.  
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Absolute shunt   When more O2 doesn't help/ refractory to oxygen therapy.  
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Shunt-like effect   When pulmonary capillary perfusion is in excess of alveolar ventilation.  
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Causes of Capillary Shunts   Atelectasis, alveolar fluid accumulation, or consolidation.  
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% of total CO2 transported to the lungs in RBC's by bicarbonate (HCO3)   63%  
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The Haldane Effect   Deoxygenated blood enhances loading of CO2 and oxyegnated blood enhaces the offload of CO2.  
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The Bohr Effect   The effect of PCO2 and PH on the oxyhemoglobin curve.  
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Anatomic Shunt normals   2 to 5%  
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Things that move ODC right   Temp increase, PCO2 increase, PH decrease (more H+), DPG increase.  
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Created by: pima respiratory
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