• If the oropharyngeal airway is too large, it
may obstruct the larynx, make a tight mask fit difficult, and traumatize laryngeal
• If the oropharyngeal airway is too small or is inserted improperly,
it pushes the tongue posteriorly, obstructing the airway.
• If the oral airway is placed in the awake patient, it may induce
vomiting, aspiration, and laryngospasm.
• If the airway is too long, it may induce vomiting and aspiration.