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Chapter: Clinical Cases in Anesthesia : The Difficult Airway

How is successful tracheal intubation verified?

The most reliable method of confirming successful tracheal intubation is by direct laryngoscopy with a traditional rigid laryngoscope and visualizing the tracheal tube between the vocal cords.

How is successful tracheal intubation verified?

The most reliable method of confirming successful tracheal intubation is by direct laryngoscopy with a traditional rigid laryngoscope and visualizing the tracheal tube between the vocal cords. External posterior displacement of the larynx may improve the view. Alternatively, a FFL can be advanced through the endotracheal tube and tracheal rings and carina identified. Two other methods of confirmation, expired carbon dioxide detection and esophageal indicator bulb inflation, are slightly less reli-able. Expired carbon dioxide detection can be quantitative or qualitative. These methods frequently provide digital readouts, wave forms, or colorimetric indicators. Alter-natively, the esophageal indicator bulb attached to an in-dwelling tracheal tube will expand rapidly if the tube is located in the trachea. When positioned in the esophagus, it will generally fail to inflate or expand slowly. Tertiary methods of verifying tracheal tube placement are less reli-able than those mentioned above and are listed in Table 46.2.

 


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Clinical Cases in Anesthesia : The Difficult Airway : How is successful tracheal intubation verified? |


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