ATI Mental Health Practice A

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: The correct answer is dopamine. Dopamine dysregulation is a key factor in the development of schizophrenia. Excess dopamine activity in certain brain regions is associated with positive symptoms of schizophrenia, such as hallucinations and delusions. Dopaminergic medications that reduce dopamine levels are often used to manage these symptoms, further supporting the role of dopamine in schizophrenia. Serotonin (Choice A) is more commonly associated with mood regulation and is implicated in depression and anxiety disorders. Norepinephrine (Choice B) is involved in the body's 'fight or flight' response and is linked to conditions like anxiety and PTSD. Acetylcholine (Choice D) plays a role in muscle movement and memory but is not primarily implicated in schizophrenia.

Correct Answer: B

Rationale: Patients prescribed lithium should maintain a consistent salt intake. Fluctuations in salt intake can impact lithium levels, potentially leading to toxicity or reduced effectiveness of the medication. It is crucial for patients to adhere to a stable salt intake while taking lithium to ensure optimal treatment outcomes. Choices A, C, and D are incorrect. Avoiding foods high in tyramine is more relevant for patients on MAOIs, not lithium. Increasing protein intake or avoiding foods high in fat are not specific dietary recommendations for patients taking lithium.

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: When initiating fluoxetine therapy in a patient with major depressive disorder, monitoring for suicidal ideation is crucial due to the increased risk of suicidal thoughts or behaviors that can occur, especially in the initial phase of treatment. This close monitoring is essential to ensure patient safety and intervene promptly if such symptoms arise. Weight gain, hypertension, and hyperglycemia are potential side effects of some medications used to treat depression, but suicidal ideation is the most critical and immediate side effect to monitor for when starting fluoxetine.