Which of the following describes a properly sized oropharyngeal airway?

A properly sized oropharyngeal airway is one that fits snugly without causing pressure. This means that the airway should be secure enough to maintain its position and prevent airway obstruction while also not being too tight, which could lead to discomfort or trauma to the tissues of the oropharynx. The snug fit helps to ensure that the airway remains patent while allowing for adequate ventilation.

In addition to this correct answer, it's important to note how sizing relates to other considerations. While some might think that resting on the uvula or matching the distance between the mouth and jaw are the criteria, the primary goal is to maintain air passage without damaging the anatomy or causing irritation. A tight seal is not necessary; instead, the airway should effectively keep the tongue away from the back of the throat, allowing air to flow freely, which aligns with the proper sizing of the device.