Having trouble with bag valve mask ventilation? Don't forget to use adjunctive airways - nasopharyngeal for conscious patients, oropharyngeal for unconscious. Reuben Strayer's great video here
advocates placing 2 nasal airways and an oral airway, then bagging over those, for the difficult to bag patient. You can also place an ETT adaptor (pull the adaptor off the tube) into a nasal airway and bag the nasal airway directly - see more information here
. Don't forget, nasal airways are measured from the nostril to the tragus of the ear, and oral airways are measured from the center of the mouth to the angle of the jaw.