A 32-year-old woman arrives at the emergency department following a traumatic event in which she witnessed a serious accident. She appears visibly distressed, with tears streaming down her face, and has not been able to calm herself despite attempts by her partner to console her. The nurse understands that immediate interventions are crucial to help the patient cope with her acute stress response.
Which of the following nursing interventions would be the most appropriate initial action by the nurse in this crisis situation?