RT Book, Section A1 Reichman, Eric F. SR Print(0) ID 57701666 T1 Chapter 15. Endotracheal Tube Intubating Introducers and Bougies T2 Emergency Medicine Procedures, 2e YR 2013 FD 2013 PB The McGraw-Hill Companies PP New York, NY SN 978-0-07-161352-1 LK accessemergencymedicine.mhmedical.com/content.aspx?aid=57701666 RD 2024/04/20 AB Airway management in the Emergency Department often occurs in an unpredictable and uncontrolled environment, sometimes with the patient arriving unannounced.1 The American Society of Anesthesiology defines a difficult intubation as an inability to properly insert an endotracheal tube with traditional direct laryngoscopy within three attempts or if it takes longer than 10 minutes.2 Difficult intubations usually reflect poor glottic visualization during direct laryngoscopy. A four-grade classification system by Cormack and Lehane describe the views of the laryngeal inlet during laryngoscopy.3 The exact incidence of difficult to intubate patients in the Emergency Department is difficult to extrapolate but estimates range between 6% and 11%.4,5