01 January 2015

The reduction in arterial (blood leaving the lung) oxygen partial pressures (PaO2)

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Burrowes KS,Clark AR,Tawhai MH.Blood flow redistribution and ventilation-perfusion mismatch during embolic pulmonary arterial occlusion.Pulmonary circulation. 2011 ;1:365-76.

(a) The reduction in arterial (blood leaving the lung) oxygen partial pressures (PaO2) and (b) the difference between alveolar and arterial oxygen partial pressures (P(A-a)O2, mmHg). Both plotted with respect to increasing occlusion indicating three different levels of mixed venous oxygen partial pressure (PvO2=40, 30, or 20 mmHg) for emboli of 7 mm in radius. PaO2reduced and P(A-a)O2increased with increasing occlusion and decreasing PvO2.

 

Additional keywords: occlusion,saturation,PaO2,PvO2,

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