Oropharyngeal Airway In an unconscious patient the tongue may fall against oropharynx and block the airway, and this will impair ventilation. Airway adjuncts such as the OPA are used to maintain an open airway and to facilitate ventilation. OROPHARYNGEAL AIRWAY SKILL SHEET   Bag Mask Ventilation Bag-mask ventilation (BMV) is a vital skill for … Continue reading All videos