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: 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: 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: B

Rationale: Sertraline is a selective serotonin reuptake inhibitor (SSRI) commonly used to treat social anxiety disorder. SSRIs are a first-line pharmacological treatment for social anxiety disorder due to their effectiveness in reducing anxiety symptoms by increasing serotonin levels in the brain, which helps regulate mood and emotions. Methylphenidate is a stimulant primarily used in attention deficit hyperactivity disorder (ADHD) but not in social anxiety disorder. Lithium is typically used in bipolar disorder, while haloperidol is an antipsychotic medication more commonly used in conditions like schizophrenia. Therefore, the correct choice for treating social anxiety disorder is Sertraline (B).

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.