Which Information Obtained by the Nurse About a Patient Who

Which information obtained by the nurse about a patient who has been using varenicline (Chantix) is most important to report to the health care provider?

A) The patient continues to smoke a few cigarettes every day.
B) The patient complains of headaches that occur almost daily.
C) The patient complains of new-onset sadness and depression.
D) The patient says, "I have decided that I am not ready to quit."