What is used to keep track of collection letters that were sent?

_______ weakens the immune system.

a. smoking b. alcohol c. poor nutrition d. AIDS (HIV) e. all of the above

If a hostile family member suddenly leaves the room, especially in the middle of a conversation with him or her, you should:

A) immediately depart the scene and notify law enforcement personnel. B) ignore the family member's departure and continue to assess your patient. C) have your partner follow the person, while working to defuse the situation. D) ask the patient to follow the person in an attempt to reason with him or her.