Glossary
Free airways are a prerequisite for oxygen to be transported down into the lungs and bound to the hemoglobin for continued transport to the body's tissues.
For example, if a person is unconscious after a traffic accident, it is important to ensure that they have free airways while waiting for an ambulance. The easiest way to create a free airway on an unconscious patient is primarily to place the person in a prostrate side position with the upper arm's hand under the chin.