A client is on trial for a violent offense and the defense claims the client was legally insane at the time of the act. According to the M'Naghten Rule, which criterion must be met for the insanity defense to be valid?
The client was unable to distinguish right from wrong due to a mental disorder at the time of the crime.
The client had a documented history of mental illness prior to the crime.
The client was compelled by uncontrollable impulses to commit the act.
The client was unaware of the consequences of their actions due to intoxication.
The Correct Answer is A
Choice A reason: The M’Naghten Rule requires proof that, due to mental illness, the person did not understand the nature of the act or could not distinguish right from wrong at the time of the offense. This is the key standard used in many jurisdictions for insanity defenses.
Choice B reason: Having a history of mental illness alone is not sufficient; the rule focuses on the client’s mental state during the offense, not prior diagnoses.
Choice C reason: Being driven by uncontrollable impulses is not part of the M’Naghten criteria. This falls more under the “irresistible impulse” test, which is separate.
Choice D reason: Intoxication, even if it impairs judgment, does not qualify under the M’Naghten Rule. Voluntary substance use generally excludes insanity defenses.
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Related Questions
Correct Answer is A
Explanation
Choice A reason: The unconscious mind, according to psychoanalytic theory, is where repressed emotions, memories, and desires are stored. These hidden influences affect behavior and mental health without the individual’s conscious awareness.
Choice B reason: Active and current awareness of memories and thoughts describes the conscious mind, not the unconscious.
Choice C reason: Immediate awareness of sensory input and decision-making refers to the conscious and preconscious processes, not the unconscious.
Choice D reason: Voluntary motor control and coordination involve the motor cortex and cerebellum, unrelated to psychoanalytic concepts of the unconscious.
Correct Answer is C
Explanation
Choice A reason: SSRIs are antidepressants used to treat depression and anxiety disorders. They do not address extrapyramidal side effects like acute dystonia, so they would not be useful in this case.
Choice B reason: Beta-blockers are primarily used for cardiovascular conditions and akathisia (a sense of restlessness), but they are not the treatment of choice for acute dystonia.
Choice C reason: Diphenhydramine, an antihistamine with strong anticholinergic properties, is effective in treating acute dystonia by restoring the balance between dopamine and acetylcholine in the basal ganglia. This makes it the correct choice for managing the client’s symptoms.
Choice D reason: Benzodiazepines may help with agitation or anxiety, but they are not first-line treatment for acute dystonic reactions caused by antipsychotic medications.
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