A written agreement, such as those used between pharmacies and suppliers, is called a(n):

Carbonic acid is unstable and will eventually dissociate into carbon dioxide and water

Indicate whether the statement is true or false

You respond to a patient who is choking. The victim is suffering from the most common of airway obstructions. This would indicate that the problem is in the ________ airway

A) bronchial B) lower C) alveoli D) upper