Correct Answer: A

Rationale: Exposure and response prevention (ERP) is the most appropriate therapy for managing OCD. ERP involves exposing the patient to anxiety-provoking stimuli (such as touching dirty objects) and preventing the compulsive response (hand washing), thus helping the patient learn to tolerate the anxiety without performing the ritualistic behavior. Dialectical behavior therapy (DBT) focuses more on emotional regulation and interpersonal skills, making it less suitable for directly addressing OCD symptoms. Family therapy and interpersonal therapy may be beneficial for other conditions or relationship issues but are not specifically designed to target OCD symptoms like ERP.

Correct Answer: C

Rationale: The widow's symptoms align more closely with an adjustment disorder rather than major depression, normal grieving, or posttraumatic stress disorder. The widow's prolonged struggle in coping with the loss, characterized by emptiness, loss of self, difficulty envisioning the future, and anger towards her deceased husband, indicates an inability to adapt to the loss. These symptoms are indicative of an adjustment disorder, which typically arises in response to a significant life stressor and persists beyond what is considered a normal grieving process. Bereavement counseling can help the widow navigate her emotions and coping strategies during this challenging period.

Correct Answer: A

Rationale: Dialectical behavior therapy (DBT) is considered the most effective therapeutic approach for managing borderline personality disorder. DBT is a specialized form of cognitive-behavioral therapy that focuses on providing skills to cope with intense emotions, improve relationships, and regulate behavior. It has been extensively studied and shown to be effective in reducing self-harm, suicidal behaviors, and improving overall functioning in individuals with borderline personality disorder. Cognitive-behavioral therapy (Choice B) is a common and effective treatment for many mental health conditions but is not as specifically tailored to address the core symptoms of borderline personality disorder as DBT. Psychoanalysis (Choice C) is a more intensive and long-term therapy that focuses on exploring unconscious patterns and early life experiences, which may not be as practical or effective for the impulsive and emotional dysregulation seen in borderline personality disorder. Supportive therapy (Choice D) provides emotional support but lacks the structured skills training and strategies that are essential in managing borderline personality disorder.

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.

Correct Answer: A

Rationale: Positive symptoms in schizophrenia refer to excesses or distortions in normal behavior and include symptoms like hallucinations, delusions, and disorganized speech and behavior. Disorganized speech and behavior are considered positive symptoms because they represent an excess or distortion of normal functions. Negative symptoms involve deficits in normal behavior, cognitive symptoms affect thinking processes, and mood symptoms relate to emotional experiences. Therefore, in this scenario, the disorganized speech and behavior exhibited by the patient are classified as positive symptoms.