The transairway pressure (PTA) shown in this figure is which of the following?
a. 5 cm H2O
b. 10 cm H2O
c. 20 cm H2O
d. 30 cm H2O
ANS: B
PTA = PIP − Pplateau, where the PIP is 30 cm H2O and the Pplateau is 20 cm H2O. The PEEP is 5 cm H2O.
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