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12/3/99 1. Blood gases in a sedated patient breathing room air at PB = 700mmHg were PaCO2 = 46mmHgAt 37°C and with an assumed R = 0.90, what is the PAO2 in this patient? a. 137 mmHg 2. A subject began breathing from her FRC for two minutes from a 9.0 L spirometer containing Helium (He) at an initial concentration of 0.0087. The resulting final FHe in the spirometer was then equal to 0.0065. What is her estimated FRC? a. 3.05 L |