Which group requires the least number of oropharyngeal airways based on the standard recommendations?

Newborns require the least number of oropharyngeal airways based on standard recommendations. This is because the anatomical and physiological characteristics of newborns differ significantly from those of older children and adults. Newborns have smaller airways that are anatomically distinct, which means that the use of oropharyngeal airways in this group is less common and not typically necessary for maintaining airway patency.

In contrast, adults, children, and infants often require oropharyngeal airways more frequently due to their larger airway structures and the potential for airway obstruction. In an emergency situation, having a selection of appropriately sized oropharyngeal airways for these groups is crucial, as they can help maintain an open airway in patients who are unconscious or unable to maintain it on their own. However, this level of intervention is less often utilized in newborns due to their unique airway dynamics and the risk of injury or complications from equipment more suited for larger patients. Thus, it is standard practice to minimize the use of oropharyngeal airways in newborns compared to other age groups.