Wilkes NSG 552 Exam 1
Psychopharmacology EXAM QUESTIONS
AND CORRECT ANSWERS WITH
RATIONALES
Practice Question Bank & Answer Rationale
THIS PACK CONTAINS
146 exam-style multiple-choice questions. Each question includes the correct answer and a complete
rationale for focused revision.
COVERAGE
This exam assesses advanced pharmacologic reasoning for psychiatric-mental health nurse practitioners,
covering neurotransmitter systems, antidepressant and antipsychotic mechanisms, mood stabilizers,
anxiolytics, ADHD pharmacotherapy, substance use pharmacotherapy, and pharmacogenomic considerations
in diverse patient populations.
STUDY GUIDE
Recommended duration: 3 hours. Passing target: 80%.
HIGHP - Page 1 of 47
,1. A patient with major depressive disorder has failed an adequate trial of an SSRI. Which
mechanism best explains why adding bupropion may be beneficial?
[ ] A. It increases synaptic serotonin by inhibiting the serotonin transporter.
[ ] B. It inhibits norepinephrine and dopamine reuptake while blocking nicotinic receptors.
[ ] C. It irreversibly inhibits monoamine oxidase type A and B.
[ ] D. It antagonizes presynaptic alpha-2 adrenergic autoreceptors.
CORRECT: B. It inhibits norepinephrine and dopamine reuptake while blocking nicotinic receptors.
Bupropion is a norepinephrine-dopamine reuptake inhibitor (NDRI) with nicotinic antagonism, offering a
non-serotonergic augmentation strategy. SSRIs act on the serotonin transporter (A), MAOIs inhibit
monoamine oxidase (C), and alpha-2 antagonists like mirtazapine enhance noradrenergic/serotonergic
release (D).
2. Which statement accurately distinguishes typical from atypical antipsychotics
regarding receptor binding?
[ ] A. Typical antipsychotics have higher affinity for serotonin 5-HT2A receptors than dopamine D2
receptors.
[ ] B. Atypical antipsychotics generally have stronger D2 blockade and minimal serotonin effects.
[ ] C. Atypical antipsychotics typically combine D2 and 5-HT2A antagonism with broader receptor
profiles.
[ ] D. Typical antipsychotics selectively block D4 receptors with negligible D2 activity.
CORRECT: C. Atypical antipsychotics typically combine D2 and 5-HT2A antagonism with broader
receptor profiles.
Atypical antipsychotics are characterized by combined D2 and 5-HT2A antagonism, plus variable activity at
other receptors (e.g., histamine, muscarinic). The other options reverse or misstate typical versus atypical
binding profiles.
3. A patient on lithium for bipolar disorder presents with coarse tremor, ataxia, and
confusion. Which additional finding would most strongly suggest lithium toxicity rather
than an alternative etiology?
[ ] A. Serum lithium level of 0.8 mEq/L
[ ] B. Serum lithium level of 2.1 mEq/L
[ ] C. Serum lithium level of 0.4 mEq/L
[ ] D. Serum lithium level of 1.0 mEq/L
CORRECT: B. Serum lithium level of 2.1 mEq/L
Lithium toxicity typically occurs at levels >1.5 mEq/L, with severe symptoms at >2.0 mEq/L. Levels of 0.4-1.0
mEq/L are within or below therapeutic range and would not explain the presentation.
HIGHP - Page 2 of 47
,4. Which benzodiazepine property most directly accounts for its rapid onset when used
for acute anxiety?
[ ] A. High lipid solubility facilitating rapid CNS penetration
[ ] B. Long elimination half-life allowing once-daily dosing
[ ] C. Active metabolites prolonging duration of action
[ ] D. Selective binding to peripheral benzodiazepine receptors
CORRECT: A. High lipid solubility facilitating rapid CNS penetration
Rapid onset correlates with high lipophilicity, which speeds blood-brain barrier crossing. Long half-life (B) and
active metabolites (C) affect duration, not onset, and peripheral binding (D) is not the primary anxiolytic
mechanism.
5. A child with ADHD has an inadequate response to methylphenidate. Which
non-stimulant is FDA-approved for ADHD and may be a reasonable alternative?
[ ] A. Bupropion
[ ] B. Atomoxetine
[ ] C. Modafinil
[ ] D. Clonidine
CORRECT: B. Atomoxetine
Atomoxetine, a selective norepinephrine reuptake inhibitor, is FDA-approved for ADHD. Bupropion and
modafinil are not FDA-approved for ADHD, and clonidine is approved as an adjunct but is not a first-line
non-stimulant alternative in this context.
6. Which pharmacogenomic variant most strongly influences clopidogrel activation and
has relevance to psychotropic drug metabolism?
[ ] A. CYP2D6 ultrarapid metabolizer status
[ ] B. CYP2C19 poor metabolizer status
[ ] C. CYP3A4 extensive metabolizer status
[ ] D. CYP1A2 inducible status
CORRECT: B. CYP2C19 poor metabolizer status
CYP2C19 poor metabolizer status reduces clopidogrel conversion to its active metabolite. While CYP2D6 (A)
is critical for many psychotropics, it is not the primary pathway for clopidogrel activation; CYP3A4 and
CYP1A2 are less directly implicated.
7. A patient with schizophrenia on risperidone develops galactorrhea and amenorrhea.
Which mechanism best explains these effects?
[ ] A. Serotonin 5-HT2A antagonism
[ ] B. Dopamine D2 blockade in the tuberoinfundibular pathway
HIGHP - Page 3 of 47
, [ ] C. Histamine H1 antagonism
[ ] D. Muscarinic M1 antagonism
CORRECT: B. Dopamine D2 blockade in the tuberoinfundibular pathway
D2 blockade in the tuberoinfundibular pathway disinhibits prolactin release, causing hyperprolactinemia.
Serotonin, histamine, and muscarinic effects do not directly drive prolactin elevation in this manner.
8. Which statement best reflects the current understanding of the 'dopamine hypothesis'
of schizophrenia?
[ ] A. Schizophrenia results solely from excessive dopamine in the mesolimbic pathway.
[ ] B. It involves dysregulation of dopamine in multiple pathways, including mesolimbic, mesocortical,
and nigrostriatal.
[ ] C. Dopamine levels are uniformly decreased across all brain regions.
[ ] D. The hypothesis has been entirely replaced by the serotonin hypothesis.
CORRECT: B. It involves dysregulation of dopamine in multiple pathways, including mesolimbic,
mesocortical, and nigrostriatal.
The modern dopamine hypothesis recognizes pathway-specific dysregulation (e.g., mesolimbic hyperactivity,
mesocortical hypoactivity) rather than a uniform excess. It has not been replaced by serotonin hypotheses
but refined by glutamate and other models.
9. A patient with generalized anxiety disorder is started on buspirone. Which counseling
point is most important regarding its onset of action?
[ ] A. It works immediately and can be used as needed for acute anxiety.
[ ] B. It may take 2-4 weeks for full therapeutic effect and is not effective as a PRN medication.
[ ] C. It should be taken only when anxiety symptoms occur.
[ ] D. It has a rapid onset within hours, similar to benzodiazepines.
CORRECT: B. It may take 2-4 weeks for full therapeutic effect and is not effective as a PRN
medication.
Buspirone requires 2-4 weeks for full efficacy and is not effective for acute, as-needed anxiety relief.
Benzodiazepines provide rapid PRN relief, but buspirone does not share that property.
10. A patient stabilized on fluoxetine for major depressive disorder now requires treatment
for a new diagnosis of pulmonary tuberculosis. Which antitubercular agent most warrants
a pharmacodynamic caution due to its potential to precipitate a serotonin syndrome-like
reaction?
[ ] A. Rifampin
[ ] B. Isoniazid
[ ] C. Ethambutol
HIGHP - Page 4 of 47
Psychopharmacology EXAM QUESTIONS
AND CORRECT ANSWERS WITH
RATIONALES
Practice Question Bank & Answer Rationale
THIS PACK CONTAINS
146 exam-style multiple-choice questions. Each question includes the correct answer and a complete
rationale for focused revision.
COVERAGE
This exam assesses advanced pharmacologic reasoning for psychiatric-mental health nurse practitioners,
covering neurotransmitter systems, antidepressant and antipsychotic mechanisms, mood stabilizers,
anxiolytics, ADHD pharmacotherapy, substance use pharmacotherapy, and pharmacogenomic considerations
in diverse patient populations.
STUDY GUIDE
Recommended duration: 3 hours. Passing target: 80%.
HIGHP - Page 1 of 47
,1. A patient with major depressive disorder has failed an adequate trial of an SSRI. Which
mechanism best explains why adding bupropion may be beneficial?
[ ] A. It increases synaptic serotonin by inhibiting the serotonin transporter.
[ ] B. It inhibits norepinephrine and dopamine reuptake while blocking nicotinic receptors.
[ ] C. It irreversibly inhibits monoamine oxidase type A and B.
[ ] D. It antagonizes presynaptic alpha-2 adrenergic autoreceptors.
CORRECT: B. It inhibits norepinephrine and dopamine reuptake while blocking nicotinic receptors.
Bupropion is a norepinephrine-dopamine reuptake inhibitor (NDRI) with nicotinic antagonism, offering a
non-serotonergic augmentation strategy. SSRIs act on the serotonin transporter (A), MAOIs inhibit
monoamine oxidase (C), and alpha-2 antagonists like mirtazapine enhance noradrenergic/serotonergic
release (D).
2. Which statement accurately distinguishes typical from atypical antipsychotics
regarding receptor binding?
[ ] A. Typical antipsychotics have higher affinity for serotonin 5-HT2A receptors than dopamine D2
receptors.
[ ] B. Atypical antipsychotics generally have stronger D2 blockade and minimal serotonin effects.
[ ] C. Atypical antipsychotics typically combine D2 and 5-HT2A antagonism with broader receptor
profiles.
[ ] D. Typical antipsychotics selectively block D4 receptors with negligible D2 activity.
CORRECT: C. Atypical antipsychotics typically combine D2 and 5-HT2A antagonism with broader
receptor profiles.
Atypical antipsychotics are characterized by combined D2 and 5-HT2A antagonism, plus variable activity at
other receptors (e.g., histamine, muscarinic). The other options reverse or misstate typical versus atypical
binding profiles.
3. A patient on lithium for bipolar disorder presents with coarse tremor, ataxia, and
confusion. Which additional finding would most strongly suggest lithium toxicity rather
than an alternative etiology?
[ ] A. Serum lithium level of 0.8 mEq/L
[ ] B. Serum lithium level of 2.1 mEq/L
[ ] C. Serum lithium level of 0.4 mEq/L
[ ] D. Serum lithium level of 1.0 mEq/L
CORRECT: B. Serum lithium level of 2.1 mEq/L
Lithium toxicity typically occurs at levels >1.5 mEq/L, with severe symptoms at >2.0 mEq/L. Levels of 0.4-1.0
mEq/L are within or below therapeutic range and would not explain the presentation.
HIGHP - Page 2 of 47
,4. Which benzodiazepine property most directly accounts for its rapid onset when used
for acute anxiety?
[ ] A. High lipid solubility facilitating rapid CNS penetration
[ ] B. Long elimination half-life allowing once-daily dosing
[ ] C. Active metabolites prolonging duration of action
[ ] D. Selective binding to peripheral benzodiazepine receptors
CORRECT: A. High lipid solubility facilitating rapid CNS penetration
Rapid onset correlates with high lipophilicity, which speeds blood-brain barrier crossing. Long half-life (B) and
active metabolites (C) affect duration, not onset, and peripheral binding (D) is not the primary anxiolytic
mechanism.
5. A child with ADHD has an inadequate response to methylphenidate. Which
non-stimulant is FDA-approved for ADHD and may be a reasonable alternative?
[ ] A. Bupropion
[ ] B. Atomoxetine
[ ] C. Modafinil
[ ] D. Clonidine
CORRECT: B. Atomoxetine
Atomoxetine, a selective norepinephrine reuptake inhibitor, is FDA-approved for ADHD. Bupropion and
modafinil are not FDA-approved for ADHD, and clonidine is approved as an adjunct but is not a first-line
non-stimulant alternative in this context.
6. Which pharmacogenomic variant most strongly influences clopidogrel activation and
has relevance to psychotropic drug metabolism?
[ ] A. CYP2D6 ultrarapid metabolizer status
[ ] B. CYP2C19 poor metabolizer status
[ ] C. CYP3A4 extensive metabolizer status
[ ] D. CYP1A2 inducible status
CORRECT: B. CYP2C19 poor metabolizer status
CYP2C19 poor metabolizer status reduces clopidogrel conversion to its active metabolite. While CYP2D6 (A)
is critical for many psychotropics, it is not the primary pathway for clopidogrel activation; CYP3A4 and
CYP1A2 are less directly implicated.
7. A patient with schizophrenia on risperidone develops galactorrhea and amenorrhea.
Which mechanism best explains these effects?
[ ] A. Serotonin 5-HT2A antagonism
[ ] B. Dopamine D2 blockade in the tuberoinfundibular pathway
HIGHP - Page 3 of 47
, [ ] C. Histamine H1 antagonism
[ ] D. Muscarinic M1 antagonism
CORRECT: B. Dopamine D2 blockade in the tuberoinfundibular pathway
D2 blockade in the tuberoinfundibular pathway disinhibits prolactin release, causing hyperprolactinemia.
Serotonin, histamine, and muscarinic effects do not directly drive prolactin elevation in this manner.
8. Which statement best reflects the current understanding of the 'dopamine hypothesis'
of schizophrenia?
[ ] A. Schizophrenia results solely from excessive dopamine in the mesolimbic pathway.
[ ] B. It involves dysregulation of dopamine in multiple pathways, including mesolimbic, mesocortical,
and nigrostriatal.
[ ] C. Dopamine levels are uniformly decreased across all brain regions.
[ ] D. The hypothesis has been entirely replaced by the serotonin hypothesis.
CORRECT: B. It involves dysregulation of dopamine in multiple pathways, including mesolimbic,
mesocortical, and nigrostriatal.
The modern dopamine hypothesis recognizes pathway-specific dysregulation (e.g., mesolimbic hyperactivity,
mesocortical hypoactivity) rather than a uniform excess. It has not been replaced by serotonin hypotheses
but refined by glutamate and other models.
9. A patient with generalized anxiety disorder is started on buspirone. Which counseling
point is most important regarding its onset of action?
[ ] A. It works immediately and can be used as needed for acute anxiety.
[ ] B. It may take 2-4 weeks for full therapeutic effect and is not effective as a PRN medication.
[ ] C. It should be taken only when anxiety symptoms occur.
[ ] D. It has a rapid onset within hours, similar to benzodiazepines.
CORRECT: B. It may take 2-4 weeks for full therapeutic effect and is not effective as a PRN
medication.
Buspirone requires 2-4 weeks for full efficacy and is not effective for acute, as-needed anxiety relief.
Benzodiazepines provide rapid PRN relief, but buspirone does not share that property.
10. A patient stabilized on fluoxetine for major depressive disorder now requires treatment
for a new diagnosis of pulmonary tuberculosis. Which antitubercular agent most warrants
a pharmacodynamic caution due to its potential to precipitate a serotonin syndrome-like
reaction?
[ ] A. Rifampin
[ ] B. Isoniazid
[ ] C. Ethambutol
HIGHP - Page 4 of 47
