Chapter 11 Egans Test
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| A. patients minute ventilation must increaseB. inspired partial pressure of oxygen (PIO2)C. measure of proportion of available Hb that is actually carrying oxygenD. alveolar PO2 lower, PCO2 higher than normalE. V/Q imbalances have a greater effect on oxygenation than on carbon dioxide removal.F. increase and promote oxygen unloadingG. gass pressure gradientsH. left. HbF has a greater affinity for oxygen than does normal adult HbI. leftJ. hypercapnia and respiratory acidosisK. enough normal Hb in the bloodL. both excess wated ventilation and poor oxygentation. Because the imbalance impairs O2 exchange and PaO2 is reducedM. influence of oxyhemoglobin saturation on CO2 dissociation N. CaO2=(0.003*PO2)+(Hbtot*1.34*SO2)O. If the arterial blood O2 content is decreased, if cardiac output or perfusion is decreased, or if abnormal cellular function prevents proper uptake of O2P. 5-10 mm Hg lessQ. PAO2= FIO2*(PB -47)-(PACO2/0.8)R. the greater the surface area, diffusion constant, and pressure gradient, the more diffusion will occurS. Dissolved oxygen= PO2*0.003T. 1.right to left shunts in pulmonary and cardiac circulation 2.regional differences in pulmonary ventilation and blood flow |
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