A patient with generalized anxiety disorder (GAD) is prescribed escitalopram. The nurse should educate the patient that the full therapeutic effect of this medication may take:

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.

Correct Answer: D

Rationale: Venlafaxine is classified as a serotonin-norepinephrine reuptake inhibitor (SNRI). SNRIs work by increasing the levels of both serotonin and norepinephrine in the brain, which helps alleviate symptoms of depression. This mechanism of action distinguishes SNRIs from other classes of antidepressants like SSRIs, TCAs, and MAOIs, making venlafaxine an effective choice for patients with major depressive disorder. Therefore, the correct answer is D. Choice A, SSRIs, primarily target serotonin reuptake only. Choice B, TCAs, work by inhibiting the reuptake of norepinephrine and serotonin, but they are not as selective as SNRIs. Choice C, MAOIs, inhibit the enzyme monoamine oxidase, leading to increased levels of various neurotransmitters, including serotonin and norepinephrine, but they are typically used as second- or third-line agents due to dietary restrictions and potential side effects.

Correct Answer: B

Rationale: When a patient is prescribed risperidone, an atypical antipsychotic, the nurse should monitor for weight gain as it is a common side effect of this medication. Weight gain can occur due to metabolic changes and increased appetite associated with risperidone use. Agranulocytosis is a severe decrease in a type of white blood cells, and it is not a common side effect of risperidone. Hair loss and hyperthyroidism are also not typically associated with risperidone use.

Correct Answer: A

Rationale: Encouraging deep, slow breathing is the most appropriate intervention for a patient experiencing a panic attack. This technique can help the patient regulate their breathing, reduce hyperventilation, and promote relaxation, which are essential in managing the symptoms of a panic attack. Choice B, encouraging the patient to talk about their feelings, may not be effective during an acute panic attack as the focus should be on calming the patient down. Choice C, leaving the patient alone, can lead to increased feelings of fear and isolation during a panic attack. Choice D, engaging the patient in physical activity, may exacerbate symptoms as it can increase the feeling of being out of control.

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.