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editorial
. 2014 Fall;61(3):113–118. doi: 10.2344/0003-3006-61.3.113

Figure 2. .

Figure 2. 

Positioning of oropharyngeal airway. (A) Oropharyngeal airway does not seal glottis and requires caution when bag mask pressures exceed 20 cm H2O. (B) Epiglottis drops down over glottis when excessive bag mask pressure is used, potentially pressurizing the stomach.