Correct Answer: D

Rationale: The most appropriate nursing intervention when a patient with schizophrenia is experiencing auditory hallucinations is to ask the patient to describe the content of the hallucinations. This intervention helps assess the risk associated with the hallucinations and provides valuable insight into the patient's condition, aiding in developing an effective care plan. Encouraging the patient to ignore the voices (Choice A) may not address the underlying issues or risks associated with the hallucinations. Providing a structured and safe environment (Choice B) is important but does not directly address the hallucinations. Engaging the patient in a debate about the reality of the voices (Choice C) may worsen the situation by invalidating the patient's experiences.

Correct Answer: B

Rationale: For a patient with agoraphobia, the priority intervention should be gradual exposure to feared situations. This approach helps the patient confront and gradually overcome their fear of leaving home, a common challenge in agoraphobia. By exposing the patient to feared situations in a step-by-step manner, they can learn to manage their anxiety and increase their confidence in leaving home. Teaching relaxation techniques (Choice A) can be beneficial but may not address the core issue of avoidance behavior. Encouraging the patient to attend social gatherings (Choice C) can be overwhelming and counterproductive at the initial stage of treatment. Providing education about the disorder (Choice D) is important but should come after addressing the immediate need for exposure therapy.

Correct Answer: C

Rationale: The correct answer is dopamine. Dopamine dysregulation is a key factor in the development of schizophrenia. Excess dopamine activity in certain brain regions is associated with positive symptoms of schizophrenia, such as hallucinations and delusions. Dopaminergic medications that reduce dopamine levels are often used to manage these symptoms, further supporting the role of dopamine in schizophrenia. Serotonin (Choice A) is more commonly associated with mood regulation and is implicated in depression and anxiety disorders. Norepinephrine (Choice B) is involved in the body's 'fight or flight' response and is linked to conditions like anxiety and PTSD. Acetylcholine (Choice D) plays a role in muscle movement and memory but is not primarily implicated in schizophrenia.

Correct Answer: C

Rationale: The correct answer is C: Decreased need for sleep. A decreased need for sleep is a hallmark symptom of a manic episode in bipolar disorder. During manic episodes, individuals may experience significantly reduced sleep without feeling tired, which can lead to increased energy levels, impulsivity, and other manic symptoms. Excessive sleeping (choice A) is more indicative of depression rather than mania. Low self-esteem (choice B) and anhedonia (choice D) are also more commonly associated with depressive episodes rather than manic episodes in bipolar disorder.

Correct Answer: B

Rationale: Buspirone is often chosen as a first-line treatment for generalized anxiety disorder (GAD) due to its efficacy and favorable side effect profile. Unlike benzodiazepines such as clonazepam (A), buspirone does not carry the risk of tolerance, dependence, or withdrawal symptoms, making it a preferred choice. While propranolol (C) and hydroxyzine (D) are sometimes used for anxiety, they are not typically considered first-line treatments for GAD.