1
NSG 552 Psychopharmacology Exams 1 2 & 3
Wilkes University 180 Actual Questions and
Verified Correct Answers Actual Exam
2026/2027 Complete Exam-Style Questions with
Detailed Rationales | 100% Verified | Pass
Guaranteed – A+ Graded
Exam 1: Foundations of Psychopharmacology (Questions 1-60)
Part I: Neuroanatomy, Neurotransmission & Receptor
Pharmacology (Questions 1-15)
Q1: A patient presents with flat affect, anhedonia, and
disorganized thought processes. Dysfunction in which
dopaminergic pathway is most directly implicated in these
positive symptoms of schizophrenia?
A. Nigrostriatal pathway
B. Mesocortical pathway
C. Mesolimbic pathway [CORRECT]
D. Tuberoinfundibular pathway
Correct Answer: C
Rationale: The best answer is the mesolimbic pathway because
hyperactivity in this tract is directly linked to the positive
,2
symptoms of schizophrenia, such as delusions and
hallucinations. This matches the psychopharmacological
principle that targeting D2 receptors in this pathway helps
resolve psychotic symptoms.
Q2: When a benzodiazepine binds to its receptor site on the
GABA-A receptor complex, which of the following occurs?
A. The chloride ion channel opens more frequently [CORRECT]
B. The chloride ion channel closes completely
C. Sodium influx is facilitated
D. Glutamate release is enhanced
Correct Answer: A
Rationale: This choice is correct because benzodiazepines act as
positive allosteric modulators, increasing the frequency of
chloride channel opening when GABA is present. This aligns
with NSG 552 curriculum emphasizing the inhibitory cascade
that results in neuronal hyperpolarization.
Q3: A PMHNP is explaining the mechanism of a new
antipsychotic to a patient. The provider notes the drug has high
affinity for 5-HT2A receptors relative to D2 receptors. What
clinical advantage does this ratio typically provide?
A. Greater efficacy for negative symptoms and lower EPS risk
[CORRECT]
,3
B. Increased risk of hyperprolactinemia
C. Higher incidence of tardive dyskinesia
D. More profound anticholinergic effects
Correct Answer: A
Rationale: The best answer is greater efficacy for negative
symptoms and lower EPS risk because 5-HT2A antagonism
promotes dopamine release in the nigrostriatal and mesocortical
pathways, mitigating D2 blockade side effects. This matches the
psychopharmacological principle of atypical antipsychotic
receptor binding profiles.
Q4: A student asks why abruptly stopping an SSRI causes
discontinuation symptoms, while starting one does not produce
immediate euphoria. The best physiological explanation
involves which concept?
A. Receptor downregulation and delayed signal transduction
[CORRECT]
B. Immediate saturation of presynaptic autoreceptors
C. Rapid inhibition of monoamine oxidase
D. Acute blockade of postsynaptic serotonin receptors
Correct Answer: A
Rationale: This choice is correct because chronic SSRI use
causes adaptive downregulation of postsynaptic receptors and
altered signal transduction, taking weeks to adapt, whereas
, 4
abrupt removal exposes this adapted state. This aligns with NSG
552 curriculum regarding the time course of neuroplasticity in
antidepressant action.
Q5: A 45-year-old patient develops a coarse pill-rolling tremor
and bradykinesia after several years on a high-potency first-
generation antipsychotic. Dysfunction in which pathway is the
primary cause?
A. Mesocortical
B. Mesolimbic
C. Tuberoinfundibular
D. Nigrostriatal [CORRECT]
Correct Answer: D
Rationale: The best answer is the nigrostriatal pathway because
D2 blockade in this motor tract depletes dopamine, causing
drug-induced parkinsonism. This matches the
psychopharmacological principle linking extrapyramidal
symptoms to disrupted basal ganglia signaling.
Q6: Which neurotransmitter system is the primary target of
medications used to treat cognitive deficits in Alzheimer’s
dementia?
A. Dopamine
B. Norepinephrine
NSG 552 Psychopharmacology Exams 1 2 & 3
Wilkes University 180 Actual Questions and
Verified Correct Answers Actual Exam
2026/2027 Complete Exam-Style Questions with
Detailed Rationales | 100% Verified | Pass
Guaranteed – A+ Graded
Exam 1: Foundations of Psychopharmacology (Questions 1-60)
Part I: Neuroanatomy, Neurotransmission & Receptor
Pharmacology (Questions 1-15)
Q1: A patient presents with flat affect, anhedonia, and
disorganized thought processes. Dysfunction in which
dopaminergic pathway is most directly implicated in these
positive symptoms of schizophrenia?
A. Nigrostriatal pathway
B. Mesocortical pathway
C. Mesolimbic pathway [CORRECT]
D. Tuberoinfundibular pathway
Correct Answer: C
Rationale: The best answer is the mesolimbic pathway because
hyperactivity in this tract is directly linked to the positive
,2
symptoms of schizophrenia, such as delusions and
hallucinations. This matches the psychopharmacological
principle that targeting D2 receptors in this pathway helps
resolve psychotic symptoms.
Q2: When a benzodiazepine binds to its receptor site on the
GABA-A receptor complex, which of the following occurs?
A. The chloride ion channel opens more frequently [CORRECT]
B. The chloride ion channel closes completely
C. Sodium influx is facilitated
D. Glutamate release is enhanced
Correct Answer: A
Rationale: This choice is correct because benzodiazepines act as
positive allosteric modulators, increasing the frequency of
chloride channel opening when GABA is present. This aligns
with NSG 552 curriculum emphasizing the inhibitory cascade
that results in neuronal hyperpolarization.
Q3: A PMHNP is explaining the mechanism of a new
antipsychotic to a patient. The provider notes the drug has high
affinity for 5-HT2A receptors relative to D2 receptors. What
clinical advantage does this ratio typically provide?
A. Greater efficacy for negative symptoms and lower EPS risk
[CORRECT]
,3
B. Increased risk of hyperprolactinemia
C. Higher incidence of tardive dyskinesia
D. More profound anticholinergic effects
Correct Answer: A
Rationale: The best answer is greater efficacy for negative
symptoms and lower EPS risk because 5-HT2A antagonism
promotes dopamine release in the nigrostriatal and mesocortical
pathways, mitigating D2 blockade side effects. This matches the
psychopharmacological principle of atypical antipsychotic
receptor binding profiles.
Q4: A student asks why abruptly stopping an SSRI causes
discontinuation symptoms, while starting one does not produce
immediate euphoria. The best physiological explanation
involves which concept?
A. Receptor downregulation and delayed signal transduction
[CORRECT]
B. Immediate saturation of presynaptic autoreceptors
C. Rapid inhibition of monoamine oxidase
D. Acute blockade of postsynaptic serotonin receptors
Correct Answer: A
Rationale: This choice is correct because chronic SSRI use
causes adaptive downregulation of postsynaptic receptors and
altered signal transduction, taking weeks to adapt, whereas
, 4
abrupt removal exposes this adapted state. This aligns with NSG
552 curriculum regarding the time course of neuroplasticity in
antidepressant action.
Q5: A 45-year-old patient develops a coarse pill-rolling tremor
and bradykinesia after several years on a high-potency first-
generation antipsychotic. Dysfunction in which pathway is the
primary cause?
A. Mesocortical
B. Mesolimbic
C. Tuberoinfundibular
D. Nigrostriatal [CORRECT]
Correct Answer: D
Rationale: The best answer is the nigrostriatal pathway because
D2 blockade in this motor tract depletes dopamine, causing
drug-induced parkinsonism. This matches the
psychopharmacological principle linking extrapyramidal
symptoms to disrupted basal ganglia signaling.
Q6: Which neurotransmitter system is the primary target of
medications used to treat cognitive deficits in Alzheimer’s
dementia?
A. Dopamine
B. Norepinephrine
