Georgette's PMHNP QBank (2026) | 5
Domains Actual Questions with
Answer Key and Detailed Rationales
Complete Exam Review for ANCC
Certification Success
DOMAIN I: SCIENTIFIC AND FOUNDATIONAL CONCEPTS
QUESTION 1
Where is norepinephrine primarily produced in the brain?
A. Raphe nuclei
B. Substantia nigra
C. Locus coeruleus
D. Basal nucleus of Meynert
Answer: C. Locus coeruleus
Rationale: Norepinephrine is primarily synthesized in the locus
coeruleus located in the pons. It projects throughout the CNS and is
associated with arousal, attention, and stress response. Serotonin is
produced in the raphe nuclei, dopamine in the substantia nigra and
ventral tegmental area, and acetylcholine in the basal forebrain.
QUESTION 2
Dopamine pathways involved in schizophrenia include:
,A. Mesolimbic (positive symptoms)
B. Mesocortical (negative/cognitive symptoms)
C. Nigrostriatal (EPS)
D. All of the above
Answer: D. All of the above
Rationale: The dopamine hypothesis of schizophrenia involves
multiple pathways. The mesolimbic pathway (hyperactivity) is
associated with positive symptoms. The mesocortical pathway
(hypoactivity) is linked to negative and cognitive symptoms. The
nigrostriatal pathway is involved in motor control and EPS from
antipsychotics. The tuberoinfundibular pathway affects prolactin.
QUESTION 3
Which statement about GABA is TRUE?
A. It is the primary excitatory neurotransmitter
B. It is synthesized from glutamate by GAD
C. It is increased in anxiety disorders
D. It has no role in sleep regulation
Answer: B. It is synthesized from glutamate by GAD
Rationale: GABA is synthesized from glutamate by glutamic acid
decarboxylase (GAD). It is the primary inhibitory neurotransmitter in
the CNS. Reduced GABA activity is associated with anxiety, seizures,
and insomnia. Benzodiazepines enhance GABA effects at GABA-A
receptors.
QUESTION 4
The amygdala is primarily responsible for:
,A. Memory formation
B. Emotional processing and fear responses
C. Executive function
D. Language comprehension
Answer: B. Emotional processing and fear responses
Rationale: The amygdala, a limbic structure, is central to processing
emotions, particularly fear and anxiety. It evaluates emotional
significance of stimuli and generates behavioral responses. It is
hyperactive in anxiety disorders and PTSD. The hippocampus is
involved in memory; the prefrontal cortex in executive function.
QUESTION 5
Glutamate is the primary __________ neurotransmitter.
A. Inhibitory
B. Excitatory
C. Modulatory
D. Neurotrophic
Answer: B. Excitatory
Rationale: Glutamate is the most abundant excitatory
neurotransmitter in the CNS. It is involved in synaptic plasticity,
learning, memory, and neural development. Excessive glutamate
activity can cause excitotoxicity, implicated in neurodegenerative
disorders and stroke. NMDA receptor antagonists (e.g., ketamine)
have rapid antidepressant effects.
QUESTION 6
The cytochrome P450 enzyme induced by tobacco smoke and responsible for
clozapine metabolism is:
, A. CYP2D6
B. CYP3A4
C. CYP1A2
D. CYP2C19
Answer: C. CYP1A2
Rationale: CYP1A2 is induced by polycyclic aromatic hydrocarbons in
cigarette smoke. It is the primary enzyme for clozapine and
olanzapine metabolism. Smokers require higher doses of these
medications. Fluvoxamine, ciprofloxacin, and caffeine inhibit CYP1A2.
"1A2 for clozapine and smoking" is a high-yield memory aid.
QUESTION 7
The mnemonic "CRAP GPS" represents drugs that are:
A. CYP inhibitors
B. CYP inducers
C. Highly protein-bound
D. Narrow therapeutic index
Answer: B. CYP inducers
Rationale: "CRAP GPS" is a mnemonic for CYP inducers:
Carbamazepine, Rifampin, Alcohol (chronic), Phenytoin, Griseofulvin,
Phenobarbital, St. John's Wort, Sulfonylureas. Inducers increase
metabolism, decreasing serum levels of substrate drugs, potentially
leading to therapeutic failure.
QUESTION 8
The amygdala, hippocampus, and locus coeruleus are rich in receptors for
which stress-related hormone?
Domains Actual Questions with
Answer Key and Detailed Rationales
Complete Exam Review for ANCC
Certification Success
DOMAIN I: SCIENTIFIC AND FOUNDATIONAL CONCEPTS
QUESTION 1
Where is norepinephrine primarily produced in the brain?
A. Raphe nuclei
B. Substantia nigra
C. Locus coeruleus
D. Basal nucleus of Meynert
Answer: C. Locus coeruleus
Rationale: Norepinephrine is primarily synthesized in the locus
coeruleus located in the pons. It projects throughout the CNS and is
associated with arousal, attention, and stress response. Serotonin is
produced in the raphe nuclei, dopamine in the substantia nigra and
ventral tegmental area, and acetylcholine in the basal forebrain.
QUESTION 2
Dopamine pathways involved in schizophrenia include:
,A. Mesolimbic (positive symptoms)
B. Mesocortical (negative/cognitive symptoms)
C. Nigrostriatal (EPS)
D. All of the above
Answer: D. All of the above
Rationale: The dopamine hypothesis of schizophrenia involves
multiple pathways. The mesolimbic pathway (hyperactivity) is
associated with positive symptoms. The mesocortical pathway
(hypoactivity) is linked to negative and cognitive symptoms. The
nigrostriatal pathway is involved in motor control and EPS from
antipsychotics. The tuberoinfundibular pathway affects prolactin.
QUESTION 3
Which statement about GABA is TRUE?
A. It is the primary excitatory neurotransmitter
B. It is synthesized from glutamate by GAD
C. It is increased in anxiety disorders
D. It has no role in sleep regulation
Answer: B. It is synthesized from glutamate by GAD
Rationale: GABA is synthesized from glutamate by glutamic acid
decarboxylase (GAD). It is the primary inhibitory neurotransmitter in
the CNS. Reduced GABA activity is associated with anxiety, seizures,
and insomnia. Benzodiazepines enhance GABA effects at GABA-A
receptors.
QUESTION 4
The amygdala is primarily responsible for:
,A. Memory formation
B. Emotional processing and fear responses
C. Executive function
D. Language comprehension
Answer: B. Emotional processing and fear responses
Rationale: The amygdala, a limbic structure, is central to processing
emotions, particularly fear and anxiety. It evaluates emotional
significance of stimuli and generates behavioral responses. It is
hyperactive in anxiety disorders and PTSD. The hippocampus is
involved in memory; the prefrontal cortex in executive function.
QUESTION 5
Glutamate is the primary __________ neurotransmitter.
A. Inhibitory
B. Excitatory
C. Modulatory
D. Neurotrophic
Answer: B. Excitatory
Rationale: Glutamate is the most abundant excitatory
neurotransmitter in the CNS. It is involved in synaptic plasticity,
learning, memory, and neural development. Excessive glutamate
activity can cause excitotoxicity, implicated in neurodegenerative
disorders and stroke. NMDA receptor antagonists (e.g., ketamine)
have rapid antidepressant effects.
QUESTION 6
The cytochrome P450 enzyme induced by tobacco smoke and responsible for
clozapine metabolism is:
, A. CYP2D6
B. CYP3A4
C. CYP1A2
D. CYP2C19
Answer: C. CYP1A2
Rationale: CYP1A2 is induced by polycyclic aromatic hydrocarbons in
cigarette smoke. It is the primary enzyme for clozapine and
olanzapine metabolism. Smokers require higher doses of these
medications. Fluvoxamine, ciprofloxacin, and caffeine inhibit CYP1A2.
"1A2 for clozapine and smoking" is a high-yield memory aid.
QUESTION 7
The mnemonic "CRAP GPS" represents drugs that are:
A. CYP inhibitors
B. CYP inducers
C. Highly protein-bound
D. Narrow therapeutic index
Answer: B. CYP inducers
Rationale: "CRAP GPS" is a mnemonic for CYP inducers:
Carbamazepine, Rifampin, Alcohol (chronic), Phenytoin, Griseofulvin,
Phenobarbital, St. John's Wort, Sulfonylureas. Inducers increase
metabolism, decreasing serum levels of substrate drugs, potentially
leading to therapeutic failure.
QUESTION 8
The amygdala, hippocampus, and locus coeruleus are rich in receptors for
which stress-related hormone?
