PMHNP-BC Psychiatric-Mental Health Nurse Practitioner Exam Prep
2026–2027 – 190+ Practice Questions with Answers & Rationales |
Psychiatric Diagnosis, Psychopharmacology, Psychotherapy, Clinical
Assessment, Ethics, Mental Health Disorders & Clinical Reasoning
SECTION I: SCIENTIFIC FOUNDATION (Questions 1–42)
Question 1
A PMHNP is reviewing the neurobiology of major depressive disorder with a
preceptor. The discussion centers on monoamine hypotheses and
neuroplasticity. Which statement best reflects current understanding of the
role of brain-derived neurotrophic factor (BDNF) in depression
pathophysiology?
A. BDNF is relevant only to anxiety disorders and has no role in mood
regulation.
B. Antidepressants act solely by increasing synaptic monoamines with no
effect on neurotrophic factors.
C. Reduced BDNF signaling in the hippocampus and prefrontal cortex is
associated with impaired neuroplasticity and is a target of several
antidepressant mechanisms.
,D. BDNF levels are consistently elevated in untreated major depression and
must be suppressed for recovery.
Correct Answer: C
Explanation: Contemporary models link stress-related reductions in BDNF to
impaired neuroplasticity in key mood-regulating circuits; many effective
treatments restore BDNF signaling. This reflects the neurotrophic hypothesis
of depression.
Question 2
A 32-year-old patient with schizophrenia exhibits predominantly negative
symptoms including avolition, alogia, and affective blunting. Which
neurobiological mechanism is most directly associated with these symptoms?
A. Hyperactivity of the mesolimbic dopaminergic pathway
B. Hypoactivity of the mesocortical dopaminergic pathway
C. Increased glutamatergic transmission in the hippocampus
D. Hyperactivity of the nigrostriatal dopaminergic pathway
,Correct Answer: B
Explanation: Negative symptoms of schizophrenia are primarily associated
with hypoactivity of the mesocortical dopaminergic pathway, which projects to
the prefrontal cortex. Mesolimbic hyperactivity is associated with positive
symptoms.
Question 3
A patient with generalized anxiety disorder is prescribed pregabalin. The
PMHNP understands that this medication's mechanism of action involves:
A. Selective serotonin reuptake inhibition
B. Binding to the alpha-2-delta subunit of voltage-gated calcium channels
C. Antagonism at 5-HT2A receptors
D. Inhibition of monoamine oxidase type A
Correct Answer: B
, Explanation: Pregabalin binds to the alpha-2-delta subunit of voltage-gated
calcium channels, reducing excitatory neurotransmitter release. This
mechanism underlies its anxiolytic and anticonvulsant effects.
Question 4
A 45-year-old patient with bipolar I disorder is being initiated on lithium.
Which laboratory parameter must be monitored most closely during the first
week of therapy?
A. Serum sodium
B. Serum lithium level
C. Thyroid-stimulating hormone
D. Complete blood count
Correct Answer: B
Explanation: Serum lithium levels must be monitored closely during initiation
due to its narrow therapeutic index. Levels should be checked 5–7 days after
starting or adjusting the dose, then periodically.
2026–2027 – 190+ Practice Questions with Answers & Rationales |
Psychiatric Diagnosis, Psychopharmacology, Psychotherapy, Clinical
Assessment, Ethics, Mental Health Disorders & Clinical Reasoning
SECTION I: SCIENTIFIC FOUNDATION (Questions 1–42)
Question 1
A PMHNP is reviewing the neurobiology of major depressive disorder with a
preceptor. The discussion centers on monoamine hypotheses and
neuroplasticity. Which statement best reflects current understanding of the
role of brain-derived neurotrophic factor (BDNF) in depression
pathophysiology?
A. BDNF is relevant only to anxiety disorders and has no role in mood
regulation.
B. Antidepressants act solely by increasing synaptic monoamines with no
effect on neurotrophic factors.
C. Reduced BDNF signaling in the hippocampus and prefrontal cortex is
associated with impaired neuroplasticity and is a target of several
antidepressant mechanisms.
,D. BDNF levels are consistently elevated in untreated major depression and
must be suppressed for recovery.
Correct Answer: C
Explanation: Contemporary models link stress-related reductions in BDNF to
impaired neuroplasticity in key mood-regulating circuits; many effective
treatments restore BDNF signaling. This reflects the neurotrophic hypothesis
of depression.
Question 2
A 32-year-old patient with schizophrenia exhibits predominantly negative
symptoms including avolition, alogia, and affective blunting. Which
neurobiological mechanism is most directly associated with these symptoms?
A. Hyperactivity of the mesolimbic dopaminergic pathway
B. Hypoactivity of the mesocortical dopaminergic pathway
C. Increased glutamatergic transmission in the hippocampus
D. Hyperactivity of the nigrostriatal dopaminergic pathway
,Correct Answer: B
Explanation: Negative symptoms of schizophrenia are primarily associated
with hypoactivity of the mesocortical dopaminergic pathway, which projects to
the prefrontal cortex. Mesolimbic hyperactivity is associated with positive
symptoms.
Question 3
A patient with generalized anxiety disorder is prescribed pregabalin. The
PMHNP understands that this medication's mechanism of action involves:
A. Selective serotonin reuptake inhibition
B. Binding to the alpha-2-delta subunit of voltage-gated calcium channels
C. Antagonism at 5-HT2A receptors
D. Inhibition of monoamine oxidase type A
Correct Answer: B
, Explanation: Pregabalin binds to the alpha-2-delta subunit of voltage-gated
calcium channels, reducing excitatory neurotransmitter release. This
mechanism underlies its anxiolytic and anticonvulsant effects.
Question 4
A 45-year-old patient with bipolar I disorder is being initiated on lithium.
Which laboratory parameter must be monitored most closely during the first
week of therapy?
A. Serum sodium
B. Serum lithium level
C. Thyroid-stimulating hormone
D. Complete blood count
Correct Answer: B
Explanation: Serum lithium levels must be monitored closely during initiation
due to its narrow therapeutic index. Levels should be checked 5–7 days after
starting or adjusting the dose, then periodically.
