ANCC PMHNP CERTIFICATION EXAM WITH
VERIFIED QUESTIONS AND ANSWERS||
ALREADY GRADED +|| LATEST VERSION 2026
Domain I: Scientific Foundation (44 Questions)
1. Which neurotransmitter system is most directly implicated in the
pathophysiology of schizophrenia?
A) Norepinephrine
B) Acetylcholine
C) Dopamine
D) Serotonin
Answer: C
Rationale: The dopamine hypothesis of schizophrenia is supported by the
therapeutic efficacy of D2 receptor antagonists and the psychosis-producing
effects of dopamine agonists.
2. A patient on an SSRI reports anorgasmia and reduced libido. These side
effects are most directly related to which receptor activity?
A) 5-HT2 antagonism
B) Alpha-2 agonism
C) 5-HT2 agonism
D) Histamine-1 blockade
Answer: C
Rationale: SSRI-induced sexual dysfunction is primarily mediated through
serotonergic activity at 5-HT2 receptors.
3. Norepinephrine is primarily synthesized in which brain structure?
A) Raphe nuclei
B) Locus coeruleus
C) Substantia nigra
D) Nucleus accumbens
Answer: B
Rationale: The locus coeruleus is the primary site of norepinephrine production
in the brain.
,4. Which neurotransmitter is primarily synthesized from the amino acid
tryptophan and is the precursor to melatonin?
A) Dopamine
B) Serotonin
C) GABA
D) Glutamate
Answer: B
Rationale: Serotonin (5-HT) is synthesized from tryptophan and serves as a
precursor to melatonin.
5. Dopamine is synthesized in which areas of the brain? (Select all that
apply)
A) Substantia nigra
B) Ventral tegmental area
C) Raphe nuclei
D) Locus coeruleus
Answer: A, B
Rationale: Dopamine is primarily produced in the substantia nigra and ventral
tegmental area.
6. Which neurotransmitter is the primary inhibitory neurotransmitter in
the CNS?
A) Glutamate
B) GABA
C) Dopamine
D) Acetylcholine
Answer: B
Rationale: GABA is the primary inhibitory neurotransmitter in the central
nervous system.
7. A patient with panic disorder shows reduced heart rate variability.
Which neurotransmitter system is most directly responsible?
A) Dopamine
B) Norepinephrine
C) Serotonin
D) Acetylcholine
Answer: B
Rationale: Reduced HRV in panic disorder is associated with norepinephrine
dysregulation.
8. Which neurotransmitter is primarily degraded by MAO-B?
A) Serotonin
,B) Dopamine
C) Norepinephrine
D) GABA
Answer: B
Rationale: MAO-B preferentially degrades dopamine, while MAO-A
preferentially degrades serotonin and norepinephrine.
9. Lisdexamfetamine exerts its therapeutic effect primarily through which
neurotransmitter action?
A) Blockade of dopamine and norepinephrine transporters
B) Direct agonism of postsynaptic 5-HT1A receptors
C) Blockade of serotonin transporters
D) Inhibition of GABA reuptake
Answer: A
Rationale: Lisdexamfetamine blocks DAT and NET, increasing catecholamine
release.
10. Which brain structure contains the majority of serotonin neurons?
A) Locus coeruleus
B) Raphe nuclei
C) Substantia nigra
D) Hippocampus
Answer: B
Rationale: The raphe nuclei in the brainstem contain the majority of serotonin-
producing neurons.
11. A patient with major depressive disorder is most likely to have
dysfunction in which neurotransmitter systems?
A) Acetylcholine only
B) Norepinephrine and serotonin
C) GABA and glutamate
D) Dopamine only
Answer: B
Rationale: The monoamine hypothesis of depression implicates deficient
serotonin, norepinephrine, and dopamine.
12. Alcohol affects which neurotransmitter primarily?
A) Dopamine
B) GABA
C) Serotonin
D) Acetylcholine
Answer: B
, Rationale: Alcohol primarily enhances GABA activity, producing its sedative
effects.
13. Which of the following is a positive symptom of schizophrenia?
A) Flat affect
B) Avolition
C) Auditory hallucinations
D) Anhedonia
Answer: C
Rationale: Hallucinations are positive symptoms (added to normal experience).
Flat affect, avolition, and anhedonia are negative symptoms.
14. Which defense mechanism is most commonly used by persons with
obsessive-compulsive personality disorder?
A) Projection
B) Undoing
C) Isolation of affect
D) Splitting
Answer: C
Rationale: Isolation of affect is characteristic of obsessive-compulsive
personality disorder.
15. A patient with borderline personality disorder experiences intense
anxiety when the PMHNP goes on vacation. The best explanation is that
the patient:
A) Has failed to develop clear ego boundaries
B) Has failed to master object constancy
C) Is employing primitive idealization
D) Is employing projective identification
Answer: B
Rationale: Object constancy—the ability to maintain a stable internal
representation of others during separation—has not been fully mastered.
16. Which developmental theorist is associated with the stages of
psychosocial development?
A) Freud
B) Piaget
C) Erikson
D) Kohlberg
Answer: C
Rationale: Erik Erikson developed the eight stages of psychosocial
development.
VERIFIED QUESTIONS AND ANSWERS||
ALREADY GRADED +|| LATEST VERSION 2026
Domain I: Scientific Foundation (44 Questions)
1. Which neurotransmitter system is most directly implicated in the
pathophysiology of schizophrenia?
A) Norepinephrine
B) Acetylcholine
C) Dopamine
D) Serotonin
Answer: C
Rationale: The dopamine hypothesis of schizophrenia is supported by the
therapeutic efficacy of D2 receptor antagonists and the psychosis-producing
effects of dopamine agonists.
2. A patient on an SSRI reports anorgasmia and reduced libido. These side
effects are most directly related to which receptor activity?
A) 5-HT2 antagonism
B) Alpha-2 agonism
C) 5-HT2 agonism
D) Histamine-1 blockade
Answer: C
Rationale: SSRI-induced sexual dysfunction is primarily mediated through
serotonergic activity at 5-HT2 receptors.
3. Norepinephrine is primarily synthesized in which brain structure?
A) Raphe nuclei
B) Locus coeruleus
C) Substantia nigra
D) Nucleus accumbens
Answer: B
Rationale: The locus coeruleus is the primary site of norepinephrine production
in the brain.
,4. Which neurotransmitter is primarily synthesized from the amino acid
tryptophan and is the precursor to melatonin?
A) Dopamine
B) Serotonin
C) GABA
D) Glutamate
Answer: B
Rationale: Serotonin (5-HT) is synthesized from tryptophan and serves as a
precursor to melatonin.
5. Dopamine is synthesized in which areas of the brain? (Select all that
apply)
A) Substantia nigra
B) Ventral tegmental area
C) Raphe nuclei
D) Locus coeruleus
Answer: A, B
Rationale: Dopamine is primarily produced in the substantia nigra and ventral
tegmental area.
6. Which neurotransmitter is the primary inhibitory neurotransmitter in
the CNS?
A) Glutamate
B) GABA
C) Dopamine
D) Acetylcholine
Answer: B
Rationale: GABA is the primary inhibitory neurotransmitter in the central
nervous system.
7. A patient with panic disorder shows reduced heart rate variability.
Which neurotransmitter system is most directly responsible?
A) Dopamine
B) Norepinephrine
C) Serotonin
D) Acetylcholine
Answer: B
Rationale: Reduced HRV in panic disorder is associated with norepinephrine
dysregulation.
8. Which neurotransmitter is primarily degraded by MAO-B?
A) Serotonin
,B) Dopamine
C) Norepinephrine
D) GABA
Answer: B
Rationale: MAO-B preferentially degrades dopamine, while MAO-A
preferentially degrades serotonin and norepinephrine.
9. Lisdexamfetamine exerts its therapeutic effect primarily through which
neurotransmitter action?
A) Blockade of dopamine and norepinephrine transporters
B) Direct agonism of postsynaptic 5-HT1A receptors
C) Blockade of serotonin transporters
D) Inhibition of GABA reuptake
Answer: A
Rationale: Lisdexamfetamine blocks DAT and NET, increasing catecholamine
release.
10. Which brain structure contains the majority of serotonin neurons?
A) Locus coeruleus
B) Raphe nuclei
C) Substantia nigra
D) Hippocampus
Answer: B
Rationale: The raphe nuclei in the brainstem contain the majority of serotonin-
producing neurons.
11. A patient with major depressive disorder is most likely to have
dysfunction in which neurotransmitter systems?
A) Acetylcholine only
B) Norepinephrine and serotonin
C) GABA and glutamate
D) Dopamine only
Answer: B
Rationale: The monoamine hypothesis of depression implicates deficient
serotonin, norepinephrine, and dopamine.
12. Alcohol affects which neurotransmitter primarily?
A) Dopamine
B) GABA
C) Serotonin
D) Acetylcholine
Answer: B
, Rationale: Alcohol primarily enhances GABA activity, producing its sedative
effects.
13. Which of the following is a positive symptom of schizophrenia?
A) Flat affect
B) Avolition
C) Auditory hallucinations
D) Anhedonia
Answer: C
Rationale: Hallucinations are positive symptoms (added to normal experience).
Flat affect, avolition, and anhedonia are negative symptoms.
14. Which defense mechanism is most commonly used by persons with
obsessive-compulsive personality disorder?
A) Projection
B) Undoing
C) Isolation of affect
D) Splitting
Answer: C
Rationale: Isolation of affect is characteristic of obsessive-compulsive
personality disorder.
15. A patient with borderline personality disorder experiences intense
anxiety when the PMHNP goes on vacation. The best explanation is that
the patient:
A) Has failed to develop clear ego boundaries
B) Has failed to master object constancy
C) Is employing primitive idealization
D) Is employing projective identification
Answer: B
Rationale: Object constancy—the ability to maintain a stable internal
representation of others during separation—has not been fully mastered.
16. Which developmental theorist is associated with the stages of
psychosocial development?
A) Freud
B) Piaget
C) Erikson
D) Kohlberg
Answer: C
Rationale: Erik Erikson developed the eight stages of psychosocial
development.
