An elderly male patient who is short of breath is on home oxygen. He is wearing a nasal cannula connected to an oxygen tank with the flow regulator set to 3 liters per minute. As a knowledgeable EMT, you should recognize that the patient is getting approximately what percentage of oxygen with each breath?

Airway management is the use of medical devices and procedures to maintain or restore a patient's breathing, or ventilation. Airway management techniques are aimed at reducing complications associated with artificial airways and mechanical ventilation, such as airway obstructions, infection, and retained secretions