ATI Mental Health Practice A

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: 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: B

Rationale: During a manic episode, individuals may experience heightened energy levels and reduced impulse control. Providing a structured environment with limited stimuli is the most appropriate nursing intervention. This approach helps reduce excessive stimulation and potential triggers for further escalation of manic behavior. It promotes a calming and controlled setting, assisting in managing symptoms and promoting the patient's well-being. Encouraging group activities (Choice A) may lead to overstimulation, allowing the patient to engage in physical activities freely (Choice C) could be risky due to impulsivity, and giving detailed tasks (Choice D) might overwhelm the individual.

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: B

Rationale: Anhedonia, the inability to feel pleasure in activities that were once enjoyable, is a hallmark symptom of major depressive disorder. Patients with major depressive disorder often experience a pervasive feeling of emptiness and loss of interest in activities they used to find pleasurable. Euphoria, increased energy, and racing thoughts are more commonly associated with conditions like bipolar disorder rather than major depressive disorder.