Ventilation

Preoxygenate patient and induce general anesthesia.

Place nasal part of mask on nose and lever mask down on face.

A. Preoxygenation and induction of anesthesia should proceed as previously described (see Induction of anesthesia cognitive aid) B. The nasal aspect of mask is placed on the bridge of the nose and the body of the mask is levered down onto the face, covering the nose and mouth.

The non-dominant hand thumb and index finger hold the mask.
The remaining fingers pull mandible into mask to open airway.

C.The non-dominant thumb and index finger hold the mask, and can rock gently side to side to achieve the best mask seal. D.The remaining fingers pull upward on the mandible to open the airway and ease bag ventilation. The machine pop-off valve (inset) can be rotated to adjust airway pressures if needed.

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