NR 546 Final Exam – Advanced Psychopharmacology
for the PMHNP – (2026) – Original Practice Questions
300 QUESTIONS
TABLE OF CONTENTS
# TOPIC
NR 546 Final Exam – Advanced Psychopharmacology for the PMHNP – (2026) – Original Practice
1
Questions
,Q1
Which dopamine pathway is primarily responsible for the development of extrapyramidal
symptoms when D2 receptors are blocked by antipsychotic medications?
A) Mesolimbic pathway
B) Nigrostriatal pathway CORRECT
C) Mesocortical pathway
D) Tuberoinfundibular pathway
Rationale
The nigrostriatal pathway controls motor function; blockade of D2 receptors here results in
extrapyramidal symptoms. The mesolimbic pathway relates to reward, the mesocortical pathway to
cognition and negative symptoms, and the tuberoinfundibular pathway to prolactin regulation.
Q2
Hyperactivity of dopamine D2 receptors in which pathway is primarily responsible for the positive
symptoms of psychosis?
A) Nigrostriatal pathway
B) Mesolimbic pathway CORRECT
C) Mesocortical pathway
D) Tuberoinfundibular pathway
Rationale
Hyperactivity of dopamine D2 receptors in the mesolimbic pathway is responsible for positive symptoms
such as hallucinations and delusions.
Q3
Which neurotransmitter system is primarily associated with the therapeutic effects of atypical
antipsychotics in treating negative symptoms of schizophrenia?
A) Dopamine D2 antagonism
B) Serotonin 5-HT2A antagonism CORRECT
C) Norepinephrine reuptake inhibition
2
,D) GABA receptor modulation
Rationale
Serotonin 5-HT2A antagonism is the primary mechanism by which atypical antipsychotics exert
therapeutic effects on negative symptoms of schizophrenia.
Q4
A patient presents with resting tremor, cogwheel rigidity, and bradykinesia after starting
haloperidol. Which brain structure is most directly implicated?
A) Hippocampus
B) Basal ganglia CORRECT
C) Amygdala
D) Thalamus
Rationale
The basal ganglia, particularly the nigrostriatal pathway, are responsible for motor control. D2 blockade
in this region produces extrapyramidal symptoms.
Q5
Which brain structure serves as the primary relay station that filters and directs sensory
information to appropriate cortical areas?
A) Hypothalamus
B) Thalamus CORRECT
C) Cerebellum
D) Medulla oblongata
Rationale
The thalamus serves as the primary relay station for sensory information, directing signals to appropriate
cortical areas for processing.
3
, Q6
A patient with damage to which brain structure would most likely present with difficulty forming
new long-term memories?
A) Amygdala
B) Hippocampus CORRECT
C) Thalamus
D) Cerebellum
Rationale
The hippocampus is critical for the consolidation of new long-term memories. Bilateral damage produces
anterograde amnesia.
Q7
Which brain region is considered the primary reward and pleasure center, and is critically
involved in addiction?
A) Prefrontal cortex
B) Mesolimbic dopamine pathway projecting to the nucleus accumbens CORRECT
C) Occipital lobe
D) Medulla
Rationale
The mesolimbic dopamine pathway, projecting from the ventral tegmental area to the nucleus
accumbens, is the brain's primary reward and pleasure circuit.
Q8
Serotonin is primarily synthesized from which dietary amino acid precursor?
A) Tyrosine
B) Tryptophan CORRECT
C) Phenylalanine
D) Histidine
4
for the PMHNP – (2026) – Original Practice Questions
300 QUESTIONS
TABLE OF CONTENTS
# TOPIC
NR 546 Final Exam – Advanced Psychopharmacology for the PMHNP – (2026) – Original Practice
1
Questions
,Q1
Which dopamine pathway is primarily responsible for the development of extrapyramidal
symptoms when D2 receptors are blocked by antipsychotic medications?
A) Mesolimbic pathway
B) Nigrostriatal pathway CORRECT
C) Mesocortical pathway
D) Tuberoinfundibular pathway
Rationale
The nigrostriatal pathway controls motor function; blockade of D2 receptors here results in
extrapyramidal symptoms. The mesolimbic pathway relates to reward, the mesocortical pathway to
cognition and negative symptoms, and the tuberoinfundibular pathway to prolactin regulation.
Q2
Hyperactivity of dopamine D2 receptors in which pathway is primarily responsible for the positive
symptoms of psychosis?
A) Nigrostriatal pathway
B) Mesolimbic pathway CORRECT
C) Mesocortical pathway
D) Tuberoinfundibular pathway
Rationale
Hyperactivity of dopamine D2 receptors in the mesolimbic pathway is responsible for positive symptoms
such as hallucinations and delusions.
Q3
Which neurotransmitter system is primarily associated with the therapeutic effects of atypical
antipsychotics in treating negative symptoms of schizophrenia?
A) Dopamine D2 antagonism
B) Serotonin 5-HT2A antagonism CORRECT
C) Norepinephrine reuptake inhibition
2
,D) GABA receptor modulation
Rationale
Serotonin 5-HT2A antagonism is the primary mechanism by which atypical antipsychotics exert
therapeutic effects on negative symptoms of schizophrenia.
Q4
A patient presents with resting tremor, cogwheel rigidity, and bradykinesia after starting
haloperidol. Which brain structure is most directly implicated?
A) Hippocampus
B) Basal ganglia CORRECT
C) Amygdala
D) Thalamus
Rationale
The basal ganglia, particularly the nigrostriatal pathway, are responsible for motor control. D2 blockade
in this region produces extrapyramidal symptoms.
Q5
Which brain structure serves as the primary relay station that filters and directs sensory
information to appropriate cortical areas?
A) Hypothalamus
B) Thalamus CORRECT
C) Cerebellum
D) Medulla oblongata
Rationale
The thalamus serves as the primary relay station for sensory information, directing signals to appropriate
cortical areas for processing.
3
, Q6
A patient with damage to which brain structure would most likely present with difficulty forming
new long-term memories?
A) Amygdala
B) Hippocampus CORRECT
C) Thalamus
D) Cerebellum
Rationale
The hippocampus is critical for the consolidation of new long-term memories. Bilateral damage produces
anterograde amnesia.
Q7
Which brain region is considered the primary reward and pleasure center, and is critically
involved in addiction?
A) Prefrontal cortex
B) Mesolimbic dopamine pathway projecting to the nucleus accumbens CORRECT
C) Occipital lobe
D) Medulla
Rationale
The mesolimbic dopamine pathway, projecting from the ventral tegmental area to the nucleus
accumbens, is the brain's primary reward and pleasure circuit.
Q8
Serotonin is primarily synthesized from which dietary amino acid precursor?
A) Tyrosine
B) Tryptophan CORRECT
C) Phenylalanine
D) Histidine
4
