Correct Answer: C

Rationale: The correct answer is C: Dissociative identity disorder. Dissociative identity disorder (DID) is characterized by the presence of two or more distinct personality states or identities, along with memory gaps beyond ordinary forgetfulness. The description of the husband sleepwalking, not recognizing his identity, and exhibiting multiple personalities aligns with the symptoms of DID. Post-traumatic stress disorder (PTSD) (Choice A) involves re-experiencing traumatic events, panic disorder (Choice B) is characterized by recurrent panic attacks, and obsessive-compulsive disorder (OCD) (Choice D) involves obsessions and compulsions. These conditions do not typically present with the specific symptoms described in the scenario.

Correct Answer: A

Rationale: The correct answer is A because the client is projecting their own aggressive tendencies onto the psychiatric aide by suggesting hitting the wall instead of the aide. This statement reflects projection, a defense mechanism where one attributes their unacceptable feelings or impulses to others. Choice B reflects externalization rather than projection, Choice C reflects rationalization, and Choice D reflects denial.

Correct Answer: B

Rationale: Teaching the client to develop a plan for daily structured activities is the most effective intervention in this scenario. This intervention helps address psychomotor retardation and enhances motivation and functioning. By structuring the client's day, it can provide a sense of purpose, routine, and accomplishment. Option A, providing education on methods to enhance sleep, may be helpful but does not directly address the client's overall functioning. Option C, suggesting the client develop a list of pleasurable activities, may provide temporary relief but may not address the core symptoms of major depressive disorder. Option D, encouraging the client to exercise, can be beneficial, but in this case, addressing the lack of structure and motivation through a daily plan is more appropriate.

Correct Answer: C

Rationale: When a client with bipolar disorder is experiencing symptoms of mania, the most appropriate intervention for the nurse is to limit stimulation and set firm limits on behavior. This approach helps in managing the manic episode by preventing further escalation. Encouraging participation in group therapy (Choice A) may not be effective during the acute phase of mania, as the client may have difficulty focusing or following group discussions. Providing a calm and structured environment (Choice B) is beneficial, but setting firm limits is crucial to managing the impulsivity and risky behaviors associated with mania. Promoting self-care practices (Choice D) is important, but during a manic episode, setting limits and reducing stimuli take precedence over hygiene practices.

Correct Answer: B

Rationale: The correct answer is B: Improvement in depressive symptoms. Lamotrigine is commonly used as a mood stabilizer and is particularly effective in managing depressive symptoms in bipolar disorder. While it may also help with preventing manic episodes, its primary indication is for treating depressive symptoms. Choices A, C, and D are incorrect because lamotrigine is not specifically indicated for reducing manic episodes, anxiety symptoms, or increasing sleep duration in bipolar disorder.