An inpatient client who has a known history of violence suddenly begins to pace. Which additional client behavior should alert the nurse to escalating anger and aggression?

The correct answer is B: Has a tense facial expression and body language. This behavior indicates increased stress and potential for aggression. Tense facial expressions and body language are often precursors to violent outbursts. It is important for the nurse to recognize these signs early to prevent escalation. Sitting with the back to peers (A) may indicate social withdrawal but not necessarily escalating aggression. Requesting PRN medications (C) could indicate anxiety or distress but does not directly suggest increasing aggression. Not wanting to eat lunch (D) could indicate various issues like appetite changes, but it does not specifically indicate escalating anger or aggression.