A 5-year-old female is being monitored in the PACU after an EGD. During the EGD, she received oropharyngeal benzocaine spray. She is calm with a heart rate of 96 bpm, blood pressure of 98/56 mmHg, and an SpO2 of 85% while on 2L/min supplemental oxygen via nasal cannula. What is the MOST likely mechanism of decreased SpO2 in this patient?
Correct!
Wrong!
Question of the Week #189
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