Complications of improper sizing of oral airway

Improperly sized oropharyngeal airways. An oropharyngeal airway that is too large will displace the epiglottis inferiorly over the glottic opening. An airway that is too small will impinge on the tongue, displacing it posteriorly into the hypopharynx.

From: Scarfone RJ. Oxygen delivery, suctioning, and airway adjuncts. In: Textbook of Pediatric Emergency Procedures, 2nd ed, King C, Henretig FM (Eds), Lippincott Williams & Wilkins 2008. Copyright © 2008. Reproduced with permission from Wolters Kluwer Health. Unauthorized reproduction of this material is prohibited.

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Complications of improper sizing of oral airway