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 client:

The correct answer is B. When a client with a history of violence suddenly paces and exhibits tense facial expressions and body language, it indicates escalating anger and aggression. Pacing is a sign of restlessness and potential agitation. Tense facial expressions and body language suggest increased stress and potential readiness for a violent outburst. The other choices are incorrect because sitting with the back to peers (A) may indicate withdrawal or discomfort but not necessarily escalating aggression. Requesting PRN medications (C) could indicate distress or discomfort but not necessarily escalating anger. Not wanting to eat lunch (D) may indicate a lack of appetite or other issues, but it does not directly correlate with escalating aggression.