- Updated algorithm for differentiating causes of respiratory distress.
- Added non-respiratory causes of respiratory distress, tenets of airway management and special considerations for treatment of upper airway obstructions in a military working dog (MWD).
- Updated oxygen supplementation photos.
- Added steps for abdominal thrust technique and external extraction technique in MWDs.
- Added photos to tracheal insufflation table.
- Updated terminology for orotracheal intubation to also include endotracheal intubation.
- Added procedures for emergency cricothyrotomy.