A Patient Being Admitted Suddenly Pulls a Knife from a Coat

Multiple Choice

A patient being admitted suddenly pulls a knife from a coat pocket and threatens, "I will kill anyone who tries to get near me." An emergency code is called. The patient is safely disarmed and placed in seclusion. Justification for the use of seclusion is that the patient:

A) evidences a thought disorder, rendering rational discussion ineffective.
B) presents a clear and present danger to others.
C) demonstrates an apparent escape risk.
D) displays features of psychotic thinking.