While you are alone and caring for an injured skier in the aid room, a fellow patroller calls and tells you that your own young child was just injured in the terrain park. Concerned for your child, you leave the patient's care unfinished and run to the terrain park. Your action could be viewed as:

The overreaction of the immune system to a substance that is otherwise harmless is known as:

a. hypersensitivity. b. hives. c. anaphylaxis. d. immunity.

When administering oxygen to a frightened child, it would be MOST appropriate to:

A. place oxygen tubing through a hole in a paper cup. B. tightly secure the oxygen mask straps to the face. C. have a parent restrain the child as you give oxygen. D. use a nasal cannula instead of a nonrebreathing mask.