A patient with major depressive disorder is started on venlafaxine. Which class of antidepressant does this medication belong to?

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: 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: A

Rationale: Cognitive-behavioral therapy (CBT) is widely recognized as the most effective treatment for phobias. CBT helps individuals identify and change negative thought patterns and behaviors associated with their phobias, leading to long-lasting improvement and symptom reduction. Unlike psychoanalysis, which focuses on exploring unconscious conflicts, CBT provides practical strategies to address phobias directly. Medication management may be used in conjunction with therapy but is not typically considered a standalone treatment for phobias. Group therapy can be beneficial for some individuals, but CBT is specifically tailored to target and alleviate phobia symptoms effectively.

Correct Answer: A

Rationale: Patients prescribed bupropion should be educated to avoid consuming alcohol while on this medication to reduce the risk of seizures. Bupropion lowers the seizure threshold, and alcohol can further increase this risk. It is important for patients to understand the potential consequences of combining bupropion with alcohol to ensure their safety and treatment effectiveness. Choices B, C, and D are incorrect. Taking bupropion in the morning does not prevent insomnia; it is not associated with significant weight gain; and it is not a first-line treatment for anxiety.

Correct Answer: C

Rationale: The most appropriate goal of cognitive-behavioral therapy (CBT) in treating generalized anxiety disorder (GAD) is to change the patient's negative thought patterns. This therapy focuses on identifying and modifying distorted thinking patterns that contribute to anxiety. Exploring childhood experiences (Choice A) may be part of therapy, but the primary focus is on present thoughts and behaviors. While medication (Choice B) can help manage symptoms, CBT aims to address the root cause through cognitive restructuring. Improving social skills (Choice D) is not the primary goal of CBT for GAD, although it may be a secondary benefit as confidence improves with reduced anxiety.

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: C

Rationale: Buspirone is different from benzodiazepines because it does not cause sedation. Unlike benzodiazepines, buspirone has a lower potential for abuse and does not cause the sedative effects commonly seen with benzodiazepines. While benzodiazepines may work immediately to relieve anxiety, buspirone may take longer to show its therapeutic effects. Additionally, buspirone is not limited to short-term treatment only, making it a preferred choice in patients where sedation is a concern or in those with a history of substance abuse.

Correct Answer: B

Rationale: Prazosin is a medication often prescribed to manage nightmares in patients with PTSD. It works by blocking the action of adrenaline on specific receptors, which helps in reducing the intensity and frequency of nightmares. While flashbacks, hypervigilance, and depression are also common symptoms of PTSD, prazosin is specifically indicated for nightmares associated with the disorder. Flashbacks are typically addressed through therapies like cognitive-behavioral therapy, hypervigilance may be managed through counseling and coping strategies, and depression may necessitate antidepressant medications or therapy tailored for depression.

Correct Answer: C

Rationale: Drowsiness is a common side effect of benzodiazepines prescribed for anxiety. Benzodiazepines work by depressing the central nervous system, which can lead to drowsiness as a side effect. This sedative effect is often desired in the treatment of anxiety disorders, but individuals should be cautious when engaging in activities that require alertness, such as driving, while taking these medications. Insomnia, weight gain, and increased appetite are not typically associated with benzodiazepines; instead, drowsiness and sedation are more common side effects.