Correct Answer: B

Rationale: A lithium level of 1.7 mEq/L is above the therapeutic range, indicating a potential risk of toxicity. The initial nursing intervention should be to instruct the patient to hold the next dose of medication and promptly contact the prescriber for further guidance and management. This action aims to prevent adverse effects and ensure the patient's safety by addressing the elevated lithium level appropriately.

Correct Answer: D

Rationale: Choice D provides a supportive and empowering explanation to the client on suicide precautions. It emphasizes the client's own sense of safety and control, indicating that the observation is temporary and can be removed when the client feels safer. This approach promotes autonomy and encourages the client to actively participate in their own well-being, fostering a therapeutic relationship based on trust and collaboration.

Correct Answer: C

Rationale: Characteristics such as age, frequency of outbursts, and occurrence in multiple settings support a diagnosis of disruptive mood dysregulation disorder. While comorbid conditions like autism can coexist with disruptive mood dysregulation disorder, it is not a characteristic that serves to support a diagnosis of this specific disorder.

Correct Answer: B

Rationale: The correct answer is B because using substances like alcohol and marijuana can be a sign of ineffective coping mechanisms in patients with dissociative disorders. Substance abuse is often used as a maladaptive way to cope with stress, trauma, or other underlying issues. Choices A, C, and D may be related to dissociative symptoms but do not directly reflect ineffective coping behaviors as substance abuse does.

Correct Answer: C

Rationale: Christopher's positive outlook, strong school performance, and forming a bond with the neighbor indicate resilience. Resilience refers to the ability to adapt and thrive despite facing adversity, such as being removed from his parents' home due to neglect. His ability to maintain a positive attitude and excel in school despite the challenging circumstances highlights his resilience.