A newborn of 32 weeks' gestation is currently receiving nasal CPAP.The respiratory therapist recently increased the CPAP level from 8 to 10 cm H₂O; the FɪO₂ is 0.6.On the new setting,the PₐO₂ is 52 mm Hg and the PₐCO₂ increased from 48 to 55 mm Hg.The most likely cause of this is which of the following?

Question

Quizplus · Accepted Answer

The rise in CO₂ after the increase in the CPAP level is most likely due to pulmonary overdistention,which leads to increased work of breathing.The increased WOB causes CO₂ retention.

A Newborn of 32 Weeks' Gestation Is Currently Receiving Nasal