Correct Answer: C

Rationale: Methylphenidate is a central nervous system stimulant commonly used in the treatment of ADHD. It helps improve focus, attention, and impulse control in individuals with ADHD. Haloperidol and clozapine are antipsychotic medications typically used for other conditions such as schizophrenia, while fluoxetine is a selective serotonin reuptake inhibitor commonly used to treat depression and anxiety disorders. Therefore, the correct answer is Methylphenidate (Choice C).

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: 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.

Correct Answer: A

Rationale: Memory loss, especially short-term memory loss, is a common side effect associated with electroconvulsive therapy (ECT). During ECT treatment, the electrical currents passed through the brain can disrupt short-term memory formation. This side effect is usually temporary, but patients should be closely monitored for any changes in memory function during and after the treatment. Choices B, C, and D are incorrect because they are not commonly associated with ECT. Hypertension, weight gain, and hyperglycemia are not typically observed as side effects of ECT.

Correct Answer: B

Rationale: When a patient with PTSD is experiencing flashbacks, the most appropriate intervention is to help them reorient to the present. This intervention can assist in reducing the intensity of the flashback and providing a sense of safety for the patient. Choice A is incorrect because encouraging the patient to talk about the trauma during a flashback may exacerbate their distress. Choice C is incorrect as leaving the patient alone can increase their feelings of isolation and fear. Choice D is incorrect because reminding the patient that the flashback is not real may invalidate their experience and increase their sense of disconnection.