Correct Answer: B

Rationale: The correct answer is B: Regular blood tests are crucial when taking valproic acid to monitor the medication levels in the bloodstream. This monitoring helps ensure that the patient is receiving the correct dosage for effective treatment and to prevent adverse effects associated with either subtherapeutic or toxic levels of the medication. Choice A is incorrect because there is no specific interaction between valproic acid and dairy products. Choice C is incorrect as valproic acid can generally be taken with food to reduce gastrointestinal side effects. Choice D is incorrect as abruptly stopping valproic acid can lead to withdrawal symptoms and worsening of the condition.

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: 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: B

Rationale: In managing a patient with OCD engaging in ritualistic behaviors like handwashing, the nurse's best initial response is to allow the ritual but set limits on the duration. This approach helps in managing the behavior while gradually working towards reducing its frequency. Interrupting the ritual abruptly may cause distress to the patient, ignoring the behavior may reinforce it, and encouraging the patient to stop the ritual without setting limits may not be as effective in the initial stage of intervention.

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.