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Figure 17-38
Mechanisms of hypoxemia during pulmonary embolism. See
the text for an explanation of the pathophysiologic flow diagram. AV, arteriovenous;
CAP PERM, capillary permeability; CC, closing capacity; FRC, functional residual
capacity; HPV, hypoxic pulmonary vasoconstriction; PA, pulmonary artery. (Redrawn
with modification from Benumof JL: Anesthesia for Thoracic Surgery, 2nd ed. Philadelphia,
WB Saunders, 1995, Chapter 8.)
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