When working with a client with post traumatic stress disorder (PTSD), who has frequent flashbacks, the nurse should include which intervention?

Post-traumatic stress disorder involves maladaptive neurobiological responses following exposure to extreme stressors. It manifests through hyperarousal, intrusive re-experiencing, and avoidance behaviors. Patients often demonstrate exaggerated startle responses and sympathetic nervous system overactivity requiring targeted behavioral stabilization and emotional regulation strategies. Rationale: A. Dismissing the trauma as having no meaning invalidates the client's experience and hinders the therapeutic alliance. Such an approach prevents the necessary processing of cognitive distortions and emotional triggers, which are essential components for achieving long-term psychological recovery and stability. B. Relaxation techniques, such as diaphragmatic breathing and progressive muscle relaxation, help modulate the autonomic nervous system. These tools empower clients to manage hypervigilance and physiological arousal during flashbacks, facilitating a return to a grounded, present state of safety. C. Physical symptoms in PTSD, such as tachycardia or diaphoresis, are directly linked to the amygdala's activation. Nurses must explain this psychosomatic connection so clients understand their bodily responses are predictable biological reactions to perceived threats rather than independent medical issues. D. Encouraging repression is counterproductive and may exacerbate dissociative symptoms over time. Evidence-based care focuses on gradual, controlled exposure and cognitive restructuring rather than pushing memories away, which typically leads to increased psychological distress and functional impairment.