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: B

Rationale: Excessive worry is a characteristic feature of generalized anxiety disorder (GAD). Patients with GAD experience persistent and excessive worry about various aspects of their life, such as work, health, or family, even when there is little or no reason for concern. This chronic worrying can significantly impact their daily functioning and quality of life. Flashbacks are more commonly associated with post-traumatic stress disorder (PTSD), hallucinations are more typical in conditions like schizophrenia, while compulsive behaviors are seen in obsessive-compulsive disorder (OCD). Therefore, in the context of GAD, excessive worry is the symptom that the nurse is most likely to observe.

Correct Answer: B

Rationale: Clonazepam, a benzodiazepine, is commonly prescribed for the treatment of panic disorder due to its anxiolytic properties. It helps reduce the frequency and intensity of panic attacks by acting on the central nervous system to produce a calming effect. Haloperidol is an antipsychotic medication, lithium is primarily used for bipolar disorder, and fluoxetine is a selective serotonin reuptake inhibitor (SSRI) commonly used for depression and some anxiety disorders, but not as a first-line treatment for panic disorder.

Correct Answer: C

Rationale: The correct answer is C, Fluoxetine. Fluoxetine, a selective serotonin reuptake inhibitor (SSRI), is commonly prescribed to manage the depressive episodes in bipolar disorder. SSRIs are effective in treating the depressive phase of bipolar disorder as they help regulate serotonin levels in the brain, which can improve mood and reduce symptoms of depression. Choice A, Valproic acid, is used more commonly in the treatment of acute mania or mixed episodes in bipolar disorder. Choice B, Risperidone, is an atypical antipsychotic often used to manage psychotic symptoms in bipolar disorder. Choice D, Lithium, is primarily used for the maintenance treatment of bipolar disorder to prevent future manic and depressive episodes.

Correct Answer: D

Rationale: Escitalopram, an SSRI used in treating generalized anxiety disorder, typically takes 6-8 weeks to achieve its full therapeutic effect. While some improvement may be noticed earlier, the maximum benefit is usually experienced after this timeframe. Options A, B, and C are incorrect because they underestimate the time required for escitalopram to reach its full effectiveness. Educating patients about the realistic timeline for medication effectiveness is crucial in managing expectations and ensuring adherence to the prescribed treatment.