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: A

Rationale: Cognitive-behavioral therapy (CBT), especially exposure and response prevention, is considered the most effective therapeutic approach for managing obsessive-compulsive disorder (OCD). CBT helps individuals identify and modify their distorted beliefs and behaviors related to OCD, while exposure and response prevention specifically target the core symptoms of OCD by gradually exposing the individual to feared stimuli and preventing compulsive responses. While medication management can be used as an adjunct to therapy, CBT has shown to have long-lasting benefits in reducing OCD symptoms and improving the overall quality of life. Psychoanalysis focuses more on exploring unconscious conflicts and childhood experiences, which may not be as effective for OCD. Group therapy can be beneficial as a supplemental treatment but is not typically as effective as individual CBT tailored to the specific needs of the individual with OCD.

Correct Answer: C

Rationale: Delusions are considered a positive symptom of schizophrenia. Positive symptoms represent an excess or distortion of normal functions, such as hallucinations, delusions, or disorganized speech or behavior. In contrast, negative symptoms involve a decrease or absence of normal functions, like alogia (poverty of speech), anhedonia (inability to experience pleasure), and flat affect (reduced expression of emotions). Therefore, in the context of schizophrenia, delusions fall under the category of positive symptoms.

Correct Answer: A

Rationale: The correct answer is A: Reduce anxiety symptoms. Propranolol, a beta-blocker, is primarily used to reduce physical symptoms of anxiety, such as rapid heartbeat and trembling, in patients with social anxiety disorder. It does not directly affect mood, energy levels, or social interactions. Choice B is incorrect because propranolol does not target mood improvement. Choice C is incorrect because propranolol does not aim to increase energy levels. Choice D is incorrect because propranolol does not enhance social interactions; its primary role is in reducing physical symptoms of anxiety.

Correct Answer: C

Rationale: A flat affect, characterized by a lack of emotional expression, is often linked to a poorer prognosis in schizophrenia. It can hinder social interactions and affect the individual's ability to engage in therapy or express emotions, thereby impacting the overall treatment outcomes. Auditory hallucinations (Choice A) and delusions of grandeur (Choice D) are common symptoms in schizophrenia but may not always indicate a poor prognosis. Paranoia (Choice B) can also vary in its impact on prognosis depending on the individual and the severity of the symptom.