What best explains the importance of epidemiology in understanding the impact of mental disorders?
Epidemiology predicts when a specific psychiatric client will recover from a specific mental disorder
Epidemiology provides a thorough theoretical explanation of why specific mental disorders occur
Epidemiology helps explain research findings about the neurophysiology that causes mental disorders
Epidemiology is the study of patterns of disease distribution and determinants of health within populations
The Correct Answer is D
Choice A reason: Predicting individual recovery is not epidemiology’s role. Recovery from disorders like depression depends on neurobiological factors (e.g., serotonin reuptake) and treatment adherence, not population-level trends. Epidemiology focuses on group patterns, not individual outcomes, making this option scientifically inaccurate for understanding mental disorder impact.
Choice B reason: Epidemiology does not provide theoretical explanations for disorder causes. Etiologies of mental illnesses, such as genetic mutations or dopamine imbalances in schizophrenia, are studied through neurobiology and genetics. Epidemiology quantifies disease prevalence and risk factors, not underlying mechanisms, making this option misaligned with its scientific purpose.
Choice C reason: Explaining neurophysiological causes is outside epidemiology’s scope. Neurophysiology, like altered GABA activity in anxiety, is studied via neuroimaging or biochemical assays. Epidemiology identifies disease patterns and risk factors across populations, not causal mechanisms, rendering this option incorrect for describing its role in mental health.
Choice D reason: Epidemiology studies disease distribution and determinants, such as prevalence of depression or risk factors like socioeconomic stress, which influence neurotransmitter imbalances (e.g., serotonin). By analyzing population data, it informs public health strategies, identifies at-risk groups, and guides interventions, making it critical for understanding mental disorder impact scientifically.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A reason: Canceling discharge overrides patient autonomy and recovery progress. Stabilized schizophrenia, managed with antipsychotics targeting dopamine, supports discharge with adherence. This action disregards the patient’s rights and neurobiological stabilization, making it an inappropriate advocacy response.
Choice B reason: Notifying security dismisses family concerns and escalates unnecessarily. Schizophrenia management relies on medication adherence, not coercion. This approach ignores patient rights and family education needs, failing to address neurobiological treatment principles, making it incorrect for advocacy.
Choice C reason: Transferring to long-term care assumes ongoing instability, ignoring current stabilization. Antipsychotics correct dopamine imbalances, supporting outpatient management. This undermines patient autonomy and recovery potential, making it an inappropriate advocacy action for a stabilized patient.
Choice D reason: Explaining medication adherence promotes patient autonomy and recovery. Antipsychotics reduce dopamine-driven hallucinations, ensuring symptom control. Educating the family empowers support for adherence, aligning with patient rights and neurobiological treatment principles, making this the correct advocacy response.
Correct Answer is C
Explanation
Choice A reason: Decreasing dopamine is used for disorders like schizophrenia, where excess mesolimbic dopamine causes hallucinations. Memory difficulties, often linked to Alzheimer’s, involve cholinergic deficits, not dopamine excess. Reducing dopamine could worsen cognition by disrupting reward and attention pathways, making this approach scientifically inappropriate for memory issues.
Choice B reason: Inhibiting GABA production is irrelevant for memory. GABA regulates neural inhibition, and its reduction could increase excitability, worsening conditions like seizures. Memory deficits, particularly in dementia, stem from reduced acetylcholine in the hippocampus, not GABA, making this option misaligned with the neurobiology of memory impairment.
Choice C reason: Preventing acetylcholine destruction, via cholinesterase inhibitors, enhances cholinergic activity in the hippocampus and cortex, critical for memory in conditions like Alzheimer’s. Low acetylcholine levels impair neural signaling, causing memory deficits. This approach directly addresses the neurochemical basis of memory difficulties, making it scientifically appropriate for treatment.
Choice D reason: Increasing dopamine sensitivity is relevant for disorders like Parkinson’s, not memory deficits. Dopamine affects motivation and movement, not memory, which relies on acetylcholine in the hippocampus. Enhancing dopamine could disrupt cognitive balance, worsening memory without addressing the cholinergic deficits central to memory impairment.
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