The combination of __________________ and ____________________ increases the risk of absorption atelectasis
a. High tidal volumes, FIO2 >0.4
b. High tidal volumes, FIO2 ?0.7
c. Low tidal volumes, FIOs >0.5
d. Low tidal volumes, FIO2 >0.7
ANS: D
High oxygen concentrations (>70% oxygen) lead to rapid absorption atelectasis, particularly in hypoventilated lung units.
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