MHA, Harbor-UCLA Medical Center Reviewed / Revised Feb 2023 View Patient Education Indications Contraindications Complications Equipment Additional Considerations Relevant Anatomy Positioning Step-by-Step Description of Procedure Aftercare Warnings and Common Errors Tips and Tricks Topic Resources Head and neck positioning... How To Do Orotracheal Intubation... Endotracheal (ET) tubes are flexible tubes with a standard flange for attaching an oxygen source at the proximal end and a beveled tip and inflatable balloon cuff at the distal end.