Potential harmful effects of nasal CPAP include which of the following?

a. Volutrauma
b. CO2 retention
c. Oxygen toxicity
d. Ventilator-induced lung injury

ANS: B
CPAP can cause pulmonary overdistention, which can increase WOB and cause CO2 retention. Volutrauma and VILI are associated with invasive mechanical ventilation. Oxygen toxicity is related to the PaO2 that results from FIO2 levels higher than 0.6.