Formularies are revised every __________

Epithelial cells are called avascular because they lack blood vessels

Indicate whether the statement is true or false

Which of the following statements indicates that the speaker has a correct understanding of the use of oxygen in a prehospital setting?

a. "Oxygen should not be given to patients with chronic lung diseases." b. "If the patient is claustrophobic, oxygen should be administered at 15 LPM through a nasal cannula." c. "Oxygen should be administered to anyone who is short of breath." d. "An OEC Technician does not need a physician's order to administer oxygen."