What is the amount of CPAP that is typically required to abolish upper airway obstruction in pa-tients with OSA?
a. 3 to 5 cm H2O
b. 10 to 20 cm H2O
c. 2.5 to 7.5 cm H2O
d. 7.5 to 12.5 cm H2O
ANS: D
For most patients, obstruction of the upper airway is abolished by CPAP between 7.5 and 12.5 cm H2O.
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