PMHNP Purple Book Appendix B
Consolidated Questions and Answers |
2026 PMHNP Certification Exam Review.
SECTION 1: NEUROANATOMY & NEUROPHYSIOLOGY
(Questions 1-15)
1. The role of neurotransmitters in the central nervous system is to function as:
A) A gatekeeper for transmissions
B) A communication medium
C) A building block for amino acids
D) An agent to break down enzymes
, Correct Answer: B
Rationale: Neurotransmitters serve as the primary communication medium of the central
nervous system, transmitting signals across synaptic clefts between neurons. This allows
for the rapid communication essential for all CNS functions including cognition, mood,
and behavior regulation .
2. Serotonin is produced in which of the following locations?
A) Locus ceruleus
B) Nucleus basalis
C) Raphe nuclei
D) Substantia nigra
Correct Answer: C
Rationale: Serotonin (5-HT) is synthesized in the raphe nuclei located in the brainstem.
These nuclei project widely throughout the CNS and regulate mood, sleep, appetite, and
impulse control. The locus ceruleus produces norepinephrine, the substantia nigra
produces dopamine, and the nucleus basalis is associated with acetylcholine production .
3. Dopamine is produced in which of the following locations?
A) Locus ceruleus
B) Nucleus basalis
C) Raphe nuclei
D) Substantia nigra
Correct Answer: D
, Rationale: Dopamine is primarily produced in the substantia nigra pars compacta and
the ventral tegmental area (VTA). The substantia nigra projects to the striatum via the
nigrostriatal pathway, which is critically involved in motor control. Dysfunction in this
pathway is central to Parkinson's disease and extrapyramidal side effects of antipsychotic
medications .
4. A client presents with complaints of changes in appetite, feeling fatigued,
problems with sleep–rest cycle, and changes in libido. What is the
neuroanatomical area of the brain responsible for the normal regulation of these
functions?
A) Thalamus
B) Hypothalamus
C) Limbic system
D) Hippocampus
Correct Answer: B
Rationale: The hypothalamus is the primary regulator of homeostasis, controlling
appetite, sleep-wake cycles, libido, and body temperature. It integrates signals from the
endocrine and autonomic nervous systems and coordinates the stress response. Damage
or dysfunction in the hypothalamus can lead to significant disruptions in these
fundamental physiological functions .
5. In considering whether to order an MRI of the head for a client, which of the
following would be a contraindication to this diagnostic test?
A) Prosthetic limb
B) History of head trauma
C) Pacemaker
D) Pregnancy
, Correct Answer: C
Rationale: MRI uses powerful magnetic fields. A pacemaker is an absolute
contraindication because the magnetic field can interfere with its function, potentially
leading to life-threatening arrhythmias. Other contraindications include certain metallic
implants (aneurysm clips, cochlear implants), although prosthetic limbs may be MRI-
compatible depending on the material. Pregnancy is not an absolute contraindication but
requires risk-benefit discussion .
6. The primary excitatory neurotransmitter is:
A) GABA
B) Serotonin
C) Dopamine
D) Glutamate
Correct Answer: D
Rationale: Glutamate is the primary excitatory neurotransmitter in the CNS, involved in
synaptic plasticity, learning, and memory. It acts on NMDA, AMPA, and kainate receptors.
GABA is the primary inhibitory neurotransmitter. Imbalances in glutamatergic
transmission are implicated in schizophrenia, mood disorders, and neurodegenerative
conditions .
7. A client experiencing difficulties with working memory, planning and
prioritizing, insight into problems, and impulse control presents for assessment.
These symptoms represent problems with which brain region?
A) Frontal lobe
B) Temporal lobe
Consolidated Questions and Answers |
2026 PMHNP Certification Exam Review.
SECTION 1: NEUROANATOMY & NEUROPHYSIOLOGY
(Questions 1-15)
1. The role of neurotransmitters in the central nervous system is to function as:
A) A gatekeeper for transmissions
B) A communication medium
C) A building block for amino acids
D) An agent to break down enzymes
, Correct Answer: B
Rationale: Neurotransmitters serve as the primary communication medium of the central
nervous system, transmitting signals across synaptic clefts between neurons. This allows
for the rapid communication essential for all CNS functions including cognition, mood,
and behavior regulation .
2. Serotonin is produced in which of the following locations?
A) Locus ceruleus
B) Nucleus basalis
C) Raphe nuclei
D) Substantia nigra
Correct Answer: C
Rationale: Serotonin (5-HT) is synthesized in the raphe nuclei located in the brainstem.
These nuclei project widely throughout the CNS and regulate mood, sleep, appetite, and
impulse control. The locus ceruleus produces norepinephrine, the substantia nigra
produces dopamine, and the nucleus basalis is associated with acetylcholine production .
3. Dopamine is produced in which of the following locations?
A) Locus ceruleus
B) Nucleus basalis
C) Raphe nuclei
D) Substantia nigra
Correct Answer: D
, Rationale: Dopamine is primarily produced in the substantia nigra pars compacta and
the ventral tegmental area (VTA). The substantia nigra projects to the striatum via the
nigrostriatal pathway, which is critically involved in motor control. Dysfunction in this
pathway is central to Parkinson's disease and extrapyramidal side effects of antipsychotic
medications .
4. A client presents with complaints of changes in appetite, feeling fatigued,
problems with sleep–rest cycle, and changes in libido. What is the
neuroanatomical area of the brain responsible for the normal regulation of these
functions?
A) Thalamus
B) Hypothalamus
C) Limbic system
D) Hippocampus
Correct Answer: B
Rationale: The hypothalamus is the primary regulator of homeostasis, controlling
appetite, sleep-wake cycles, libido, and body temperature. It integrates signals from the
endocrine and autonomic nervous systems and coordinates the stress response. Damage
or dysfunction in the hypothalamus can lead to significant disruptions in these
fundamental physiological functions .
5. In considering whether to order an MRI of the head for a client, which of the
following would be a contraindication to this diagnostic test?
A) Prosthetic limb
B) History of head trauma
C) Pacemaker
D) Pregnancy
, Correct Answer: C
Rationale: MRI uses powerful magnetic fields. A pacemaker is an absolute
contraindication because the magnetic field can interfere with its function, potentially
leading to life-threatening arrhythmias. Other contraindications include certain metallic
implants (aneurysm clips, cochlear implants), although prosthetic limbs may be MRI-
compatible depending on the material. Pregnancy is not an absolute contraindication but
requires risk-benefit discussion .
6. The primary excitatory neurotransmitter is:
A) GABA
B) Serotonin
C) Dopamine
D) Glutamate
Correct Answer: D
Rationale: Glutamate is the primary excitatory neurotransmitter in the CNS, involved in
synaptic plasticity, learning, and memory. It acts on NMDA, AMPA, and kainate receptors.
GABA is the primary inhibitory neurotransmitter. Imbalances in glutamatergic
transmission are implicated in schizophrenia, mood disorders, and neurodegenerative
conditions .
7. A client experiencing difficulties with working memory, planning and
prioritizing, insight into problems, and impulse control presents for assessment.
These symptoms represent problems with which brain region?
A) Frontal lobe
B) Temporal lobe
