A nurse is evaluating the effectiveness of coping strategies in a client using defense mechanisms to deal with acute stress. Which observation would prompt the nurse to intervene?

Choice A reason: Deep breathing is a healthy coping strategy that reduces sympathetic nervous system activation, lowers tension, and promotes relaxation. No intervention is needed. Choice B reason: Avoidance is maladaptive because it prevents the client from addressing stressors directly. It may provide temporary relief but leads to worsening anxiety and impaired functioning. This observation requires intervention to redirect the client toward healthier coping strategies. Choice C reason: Progressive muscle relaxation is an evidence-based technique that reduces stress and promotes relaxation. It is adaptive and effective, requiring no intervention. Choice D reason: Physical exercise is a positive coping mechanism that reduces stress hormones, improves mood, and enhances resilience. It is beneficial and does not warrant intervention.