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.

Correct Answer: B

Rationale: Lithium is a well-established mood stabilizer commonly prescribed for the treatment of bipolar disorder. It helps to control manic episodes, stabilize mood swings, and reduce the risk of relapse in individuals with this condition. Sertraline is an antidepressant commonly used for treating depression, while Clozapine and Haloperidol are antipsychotic medications used for different psychiatric conditions. Therefore, the correct answer is B because it is specifically indicated and effective for bipolar disorder.

Correct Answer: C

Rationale: Dry mouth is a common side effect associated with tricyclic antidepressants (TCAs). TCAs can cause anticholinergic side effects, such as dry mouth, due to their mechanism of action. Educating the patient about dry mouth can help them stay informed and manage this common side effect effectively during treatment. Hypertension (Choice A) is not a common side effect of TCAs. Diarrhea (Choice B) is more commonly associated with selective serotonin reuptake inhibitors (SSRIs) than with TCAs. Weight loss (Choice D) is not a common side effect of TCAs; in fact, TCAs are more likely to cause weight gain.

Correct Answer: C

Rationale: During a severe anxiety episode, it's crucial to stay with the patient and create a quiet environment. This approach helps reduce anxiety by providing a sense of safety and support. Encouraging the patient to talk about their feelings may not be effective during an acute episode of severe anxiety. Using a firm, authoritative approach can escalate the situation and worsen the anxiety. Suggesting distractions like watching TV may not address the root cause of the anxiety or provide the necessary support.

Correct Answer: B

Rationale: Patients prescribed fluoxetine should be educated that the medication may take several weeks to achieve its full therapeutic effect. This information helps manage patient expectations and ensures they do not discontinue the medication prematurely due to lack of immediate results. Taking the medication in the morning to avoid insomnia is not a specific requirement for fluoxetine. Consuming alcohol while taking fluoxetine is not safe and can lead to adverse effects. It is crucial to report any side effects to the healthcare provider promptly for timely management and adjustment of the treatment plan.