Correct Answer: B

Rationale: Valproic acid is commonly prescribed as a mood stabilizer for the treatment of bipolar disorder. It helps in controlling mood swings, preventing manic episodes, and reducing the risk of depressive episodes in individuals with bipolar disorder. Sertraline is an antidepressant typically used for major depressive disorder and other anxiety disorders, not for bipolar disorder. Clozapine and Haloperidol are antipsychotic medications primarily used in schizophrenia and other psychotic disorders, not as first-line treatments for bipolar disorder.

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: Alogia, also known as poverty of speech, is a negative symptom of schizophrenia. It refers to a reduction in the amount of speech or the feeling that one has nothing to say. Hallucinations and delusions are positive symptoms, characterized by the presence of abnormal experiences and beliefs. Paranoia is a symptom involving intense anxious or fearful feelings, which is not classified as a negative symptom of schizophrenia.

Correct Answer: A

Rationale: Deep breathing exercises are a widely recommended technique for managing anxiety and promoting relaxation. By focusing on deep, slow breaths, individuals can activate the body's relaxation response, leading to decreased anxiety levels and an overall sense of calm. This technique is easy to learn, can be practiced anywhere, and is often suggested by healthcare professionals as a first-line approach for anxiety management. Physical exercise, mindfulness meditation, and journaling are also beneficial for mental well-being but may not be the first choice when specifically targeting acute anxiety management.

Correct Answer: B

Rationale: Patients prescribed lithium should maintain a consistent salt intake to prevent fluctuations in lithium levels. Salt intake can impact lithium levels, and sudden changes in salt intake can affect how the body absorbs and excretes lithium. Therefore, advising the patient to maintain a stable salt intake is crucial for the effectiveness and safety of lithium therapy. Choices A, C, and D are incorrect. Avoiding foods high in tyramine is more relevant for patients taking MAOIs, not lithium. Increasing protein intake or avoiding foods high in fat are not specific dietary recommendations for patients on lithium therapy.