If pleural pressure changes from –3 cm H2O to –7 cm H2O as a subject breathes from FRC to FRC +1 L, what is the compliance of the lung?
A. 0.1 L/cm H2O
B. 4 cm H2O/L
C. 0.25 L/cm H2O
D. 10 cm H2O/L
ANS: C
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