A patient with borderline personality disorder experiences intense anxiety when an adult psychiatric

and mental health nurse practitioner goes on vacation. The best explanation for this reaction is that

the patient:

A. has failed to develop clear ego boundaries.

B. has failed to master object constancy.

C. is employing primitive idealization.

D. is employing projective identification. - B. has failed to master object constancy

2. A patient has been taking escitalopram (Lexapro) 10 mg dail...