111122223333444456肘静脉、下肢、上腔、右心房、右心室、肺动脉的静脉氧分压？静脉采血点的氧分压血压Hypoxiaoccursmoreeasilythanhypercarbia.Why?PaO2的降低远多于PaCO2的升高出着容易进着难•浓度差、物理弥散化学解离性质，气体分压Pt=+++P1P2P3P4气体分压PO2+PCO2=aconstant•Inthealveolus,themixtureofgassescontainsnitrogen,watervapor,tracegasses,oxygenandcarbondioxide.–Attheendofabreath,thepressureinthealve...
