Which of the following questions is the priority to ask a client who has a prescription for amitriptyline?

Rationale: A. "Do you have trouble completing tasks?": Difficulty with concentration or completing tasks can occur with depression or as a side effect of amitriptyline, but it is not immediately life-threatening. While important to assess, it is not the highest priority question. B. "Have you noticed any recent weight gain?": Weight changes can occur with antidepressant use, including amitriptyline, due to altered appetite or metabolism. Although relevant for long-term monitoring, it does not indicate an urgent risk to the client’s safety. C. "Have you had thoughts of killing yourself?": Amitriptyline is a tricyclic antidepressant, and clients starting this medication are at increased risk for suicidal ideation, particularly in the early phases of therapy. Assessing for suicidal thoughts is a priority to prevent self-harm and guide immediate safety interventions. D. "Do you eat a lot of salty foods?": Sodium intake can influence blood pressure and fluid balance, but it is not a primary concern when initiating amitriptyline. This question is relevant for general health monitoring rather than immediate safety.