The________ is the main database of a hospital's patients.

At a health fair, a patient informs you that she has just been prescribed a metered-dose inhaler (MDI) for her asthma. She states that she is confused about how to take the medication when needed. Which one of the following statements about the MDI would be most appropriate for you to make?

A) "Take it every 4 hours around the clock, even if you feel fine." B) "Make sure to store the metered-dose inhaler in your refrigerator." C) "You should only take the medication after calling your doctor." D) "It is important to shake the inhaler vigorously before taking the medication."

When providing oxygen via nonrebreather face mask, which one of the following is essential for the EMT to have?

A) Oxygen humidifier B) Therapy regulator C) D or E oxygen cylinder D) High-pressure regulator