NUR 5461 ADVANCED PSYCHOPHARMACOLOGY MODULE
6 QUIZ 2026 | William Paterson University | Graded A+ |
Verified Answers | Pass Guaranteed - A+ Graded
Section 1: Neurobiology of Major Psychiatric Disorders (Q1-10)
Question 1 Which serotonin receptor subtype is primarily responsible for the
anxiolytic and antidepressant effects of SSRIs through enhancement of postsynaptic
signaling, while stimulation of which receptor is associated with anxiety, insomnia,
and sexual dysfunction?
A. 5-HT2A; 5-HT1A
B. 5-HT3; 5-HT2C
C. 5-HT1A; 5-HT2A [CORRECT]
D. 5-HT1A; 5-HT3
Rationale: 5-HT1A autoreceptor desensitization and postsynaptic activation promote
anxiolytic and antidepressant effects, whereas 5-HT2A stimulation contributes to
SSRI-induced anxiety, insomnia, and sexual dysfunction. 5-HT3 is associated with GI
side effects, not these specific adverse effects.
Correct Answer: C
Question 2 A 34-year-old patient with schizophrenia reports pleasurable auditory
hallucinations and intense euphoria. These positive symptoms most likely result from
hyperactivity of which dopaminergic pathway, and would be best targeted by which
pharmacologic action?
A. Mesocortical; D2 antagonism
B. Nigrostriatal; D2 partial agonism
C. Mesolimbic; D2 antagonism [CORRECT]
D. Tuberoinfundibular; D2 antagonism
Rationale: The mesolimbic pathway hyperactivity is implicated in positive symptoms
(hallucinations, delusions, euphoria), and D2 antagonism in this pathway is the
,primary mechanism for antipsychotic efficacy. The mesocortical pathway
hypofunction relates to negative symptoms.
Correct Answer: C
Question 3 A PMHNP is educating a patient starting lorazepam for panic disorder.
Which neurobiological explanation best describes why benzodiazepines produce
anxiolysis without significantly affecting monoamine systems?
A. They block NMDA receptors and prevent excitotoxicity
B. They enhance GABA-A receptor chloride channel conductance, increasing neuronal
inhibition [CORRECT]
C. They stimulate 5-HT1A autoreceptors in the raphe nuclei
D. They inhibit reuptake of GABA into presynaptic neurons
Rationale: Benzodiazepines bind to the benzodiazepine site on GABA-A receptors,
allosterically enhancing chloride ion influx and producing CNS inhibition. They do not
directly affect monoamine reuptake or NMDA receptors.
Correct Answer: B
Question 4 The NMDA receptor hypofunction hypothesis of schizophrenia is
supported by which clinical and pharmacologic observation?
A. SSRIs worsen psychotic symptoms in all patients
B. NMDA antagonists like ketamine and PCP induce schizophrenia-like symptoms in
healthy individuals [CORRECT]
C. Dopamine agonists reverse NMDA hypofunction
D. GABA-B receptor agonists prevent glutamate excitotoxicity
Rationale: NMDA receptor antagonists (ketamine, PCP) produce positive, negative,
and cognitive symptoms resembling schizophrenia, supporting the hypofunction
hypothesis. This has led to glutamate-based treatment research.
Correct Answer: B
, Question 5 A 45-year-old patient with major depressive disorder has elevated
evening cortisol levels and a blunted dexamethasone suppression test. This
neuroendocrine finding reflects dysregulation of which axis, and which brain region is
the primary source of the elevated hormone?
A. HPA axis; hippocampus
B. HPA axis; locus coeruleus
C. HPA axis; hypothalamus (paraventricular nucleus) [CORRECT]
D. HPG axis; pituitary gland
Rationale: Depression is associated with HPA axis hyperactivity, where the
paraventricular nucleus of the hypothalamus secretes excess corticotropin-releasing
hormone (CRH), leading to elevated cortisol and hippocampal volume loss over time.
Correct Answer: C
Question 6 A PMHNP reviews neuroimaging literature showing that successful SSRI
treatment correlates with increased hippocampal volume in depressed patients.
Which molecular mechanism best explains this neuroplastic effect and its time
course?
A. Immediate GABA-A receptor upregulation
B. Gradual BDNF upregulation and neurogenesis via CREB-mediated transcription
[CORRECT]
C. Rapid dopamine D2 receptor sensitization
D. Acute NMDA receptor blockade
Rationale: Antidepressant response requires 2-4 weeks, paralleling BDNF-mediated
neurogenesis and synaptic plasticity in the hippocampus through CREB signaling.
This explains the delayed therapeutic effect and structural brain changes.
Correct Answer: B
6 QUIZ 2026 | William Paterson University | Graded A+ |
Verified Answers | Pass Guaranteed - A+ Graded
Section 1: Neurobiology of Major Psychiatric Disorders (Q1-10)
Question 1 Which serotonin receptor subtype is primarily responsible for the
anxiolytic and antidepressant effects of SSRIs through enhancement of postsynaptic
signaling, while stimulation of which receptor is associated with anxiety, insomnia,
and sexual dysfunction?
A. 5-HT2A; 5-HT1A
B. 5-HT3; 5-HT2C
C. 5-HT1A; 5-HT2A [CORRECT]
D. 5-HT1A; 5-HT3
Rationale: 5-HT1A autoreceptor desensitization and postsynaptic activation promote
anxiolytic and antidepressant effects, whereas 5-HT2A stimulation contributes to
SSRI-induced anxiety, insomnia, and sexual dysfunction. 5-HT3 is associated with GI
side effects, not these specific adverse effects.
Correct Answer: C
Question 2 A 34-year-old patient with schizophrenia reports pleasurable auditory
hallucinations and intense euphoria. These positive symptoms most likely result from
hyperactivity of which dopaminergic pathway, and would be best targeted by which
pharmacologic action?
A. Mesocortical; D2 antagonism
B. Nigrostriatal; D2 partial agonism
C. Mesolimbic; D2 antagonism [CORRECT]
D. Tuberoinfundibular; D2 antagonism
Rationale: The mesolimbic pathway hyperactivity is implicated in positive symptoms
(hallucinations, delusions, euphoria), and D2 antagonism in this pathway is the
,primary mechanism for antipsychotic efficacy. The mesocortical pathway
hypofunction relates to negative symptoms.
Correct Answer: C
Question 3 A PMHNP is educating a patient starting lorazepam for panic disorder.
Which neurobiological explanation best describes why benzodiazepines produce
anxiolysis without significantly affecting monoamine systems?
A. They block NMDA receptors and prevent excitotoxicity
B. They enhance GABA-A receptor chloride channel conductance, increasing neuronal
inhibition [CORRECT]
C. They stimulate 5-HT1A autoreceptors in the raphe nuclei
D. They inhibit reuptake of GABA into presynaptic neurons
Rationale: Benzodiazepines bind to the benzodiazepine site on GABA-A receptors,
allosterically enhancing chloride ion influx and producing CNS inhibition. They do not
directly affect monoamine reuptake or NMDA receptors.
Correct Answer: B
Question 4 The NMDA receptor hypofunction hypothesis of schizophrenia is
supported by which clinical and pharmacologic observation?
A. SSRIs worsen psychotic symptoms in all patients
B. NMDA antagonists like ketamine and PCP induce schizophrenia-like symptoms in
healthy individuals [CORRECT]
C. Dopamine agonists reverse NMDA hypofunction
D. GABA-B receptor agonists prevent glutamate excitotoxicity
Rationale: NMDA receptor antagonists (ketamine, PCP) produce positive, negative,
and cognitive symptoms resembling schizophrenia, supporting the hypofunction
hypothesis. This has led to glutamate-based treatment research.
Correct Answer: B
, Question 5 A 45-year-old patient with major depressive disorder has elevated
evening cortisol levels and a blunted dexamethasone suppression test. This
neuroendocrine finding reflects dysregulation of which axis, and which brain region is
the primary source of the elevated hormone?
A. HPA axis; hippocampus
B. HPA axis; locus coeruleus
C. HPA axis; hypothalamus (paraventricular nucleus) [CORRECT]
D. HPG axis; pituitary gland
Rationale: Depression is associated with HPA axis hyperactivity, where the
paraventricular nucleus of the hypothalamus secretes excess corticotropin-releasing
hormone (CRH), leading to elevated cortisol and hippocampal volume loss over time.
Correct Answer: C
Question 6 A PMHNP reviews neuroimaging literature showing that successful SSRI
treatment correlates with increased hippocampal volume in depressed patients.
Which molecular mechanism best explains this neuroplastic effect and its time
course?
A. Immediate GABA-A receptor upregulation
B. Gradual BDNF upregulation and neurogenesis via CREB-mediated transcription
[CORRECT]
C. Rapid dopamine D2 receptor sensitization
D. Acute NMDA receptor blockade
Rationale: Antidepressant response requires 2-4 weeks, paralleling BDNF-mediated
neurogenesis and synaptic plasticity in the hippocampus through CREB signaling.
This explains the delayed therapeutic effect and structural brain changes.
Correct Answer: B
