NSG 552 PSYCHOPHARMACOLOGY — FINAL EXAM
COMPLETE TEST BANK COMPREHENSIVE FINAL EXAM 300
QUESTIONS WITH NGN CASE SCENARIOS & DETAILED
RATIONALES 2026/2027 UPDATE
TABLE OF CONTENTS
SECTION 1: FOUNDATIONS OF PSYCHOPHARMACOLOGY ................ Q 1–60
SECTION 2: ANTIPSYCHOTIC MEDICATIONS ......................... Q 61–120
SECTION 3: MOOD STABILIZERS & BIPOLAR DISORDER ............... Q 121–170
SECTION 4: ANTIDEPRESSANTS & DEPRESSIVE DISORDERS ............ Q 171–230
SECTION 5: ANXIETY, TRAUMA & SUBSTANCE USE ................... Q 231–280
SECTION 6: SPECIAL POPULATIONS & NGN CASE SCENARIOS .......... Q 281–300
SECTION 1: FOUNDATIONS OF PSYCHOPHARMACOLOGY (Q 1–60)
Q1. What is the primary function of the blood-brain barrier?
A) To protect the brain from harmful substances in the bloodstream
B) To produce cerebrospinal fluid
C) To transmit action potentials
D) To synthesize neurotransmitters
Answer: A
Rationale: The blood-brain barrier (BBB) protects the brain from harmful
substances in the bloodstream while allowing essential nutrients to pass through.
It is formed by tight junctions between capillary endothelial cells, astrocyte foot
processes, and pericytes. The BBB restricts the passage of many drugs, which is a
major challenge in psychopharmacology.
Q2. Which of the following is NOT a monoamine neurotransmitter?
A) Dopamine
B) Serotonin
C) Acetylcholine
D) Norepinephrine
Answer: C
Rationale: Acetylcholine is not a monoamine; it is a cholinergic neurotransmitter
synthesized from choline and acetyl-CoA. Dopamine (A), serotonin (B), and
norepinephrine (D) are monoamines, which are characterized by a single amino
group connected to an aromatic ring by a two-carbon chain.
1
,Q3. What is the primary enzyme responsible for the degradation of acetylcholine?
A) Monoamine oxidase (MAO)
B) Catechol-O-methyltransferase (COMT)
C) Acetylcholinesterase (AChE)
D) Glutamic acid decarboxylase (GAD)
Answer: C
Rationale: Acetylcholinesterase (AChE) is the primary enzyme responsible for the
degradation of acetylcholine in the synaptic cleft. It hydrolyzes acetylcholine into
choline and acetate. MAO (A) and COMT (B) degrade monoamines. GAD (D)
synthesizes GABA.
Q4. Which enzyme degrades dopamine and norepinephrine in the synaptic cleft?
A) Acetylcholinesterase
B) Monoamine oxidase (MAO)
C) Glutamic acid decarboxylase
D) Choline acetyltransferase
Answer: B
Rationale: Monoamine oxidase (MAO) degrades dopamine and norepinephrine
(and serotonin) in the synaptic cleft and presynaptic terminal. There are two
isoforms: MAO-A (prefers serotonin and norepinephrine) and MAO-B (prefers
dopamine). Acetylcholinesterase (A) degrades acetylcholine. GAD (C) synthesizes
GABA. Choline acetyltransferase (D) synthesizes acetylcholine.
Q5. What is the primary excitatory neurotransmitter in the central nervous
system?
A) GABA
B) Glutamate
C) Serotonin
D) Glycine
Answer: B
Rationale: Glutamate is the primary excitatory neurotransmitter in the CNS. It acts
on ionotropic receptors (NMDA, AMPA, kainate) and metabotropic receptors.
Glutamate is involved in learning, memory, and synaptic plasticity. Excess
glutamate (excitotoxicity) is implicated in neurodegeneration. GABA (A) is the
2
,primary inhibitory neurotransmitter. Serotonin (C) is a monoamine. Glycine (D) is
an inhibitory neurotransmitter in the spinal cord.
Q6. The primary inhibitory neurotransmitter in the central nervous system is:
A) Glutamate
B) GABA
C) Norepinephrine
D) Dopamine
Answer: B
Rationale: GABA (gamma-aminobutyric acid) is the primary inhibitory
neurotransmitter in the CNS. It acts on GABA-A receptors (ionotropic, chloride
channel) and GABA-B receptors (metabotropic). GABA is synthesized from
glutamate via glutamic acid decarboxylase (GAD). GABAergic dysfunction is
implicated in anxiety disorders, epilepsy, and insomnia. Glutamate (A) is the
primary excitatory neurotransmitter. Norepinephrine (C) and dopamine (D) are
monoamines.
Q7. Dopamine is synthesized from which amino acid?
A) Tyrosine
B) Tryptophan
C) Glutamine
D) GABA
Answer: A
Rationale: Dopamine is synthesized from the amino acid tyrosine through a two-
step process: tyrosine → L-DOPA (via tyrosine hydroxylase) → dopamine (via
DOPA decarboxylase). This pathway also produces norepinephrine and
epinephrine. Tryptophan (B) is the precursor for serotonin. Glutamine (C) is a
precursor for glutamate and GABA. GABA (D) is a neurotransmitter, not an amino
acid precursor.
Q8. Serotonin is synthesized from which amino acid?
A) Tyrosine
B) Tryptophan
C) Glutamine
D) Glycine
Answer: B
3
, Rationale: Serotonin (5-HT) is synthesized from the amino acid tryptophan
through a two-step process: tryptophan → 5-hydroxytryptophan (5-HTP) (via
tryptophan hydroxylase) → serotonin (via L-aromatic amino acid decarboxylase).
Tryptophan is an essential amino acid that must be obtained through the diet.
Tyrosine (A) is the precursor for catecholamines. Glutamine (C) is a precursor for
glutamate and GABA. Glycine (D) is an inhibitory neurotransmitter.
Q9. The rate-limiting step in catecholamine synthesis is:
A) Tyrosine hydroxylase
B) DOPA decarboxylase
C) Dopamine beta-hydroxylase
D) COMT
Answer: A
Rationale: Tyrosine hydroxylase (TH) is the rate-limiting enzyme in catecholamine
(dopamine, norepinephrine, epinephrine) synthesis. It converts tyrosine to L-
DOPA. TH is regulated by feedback inhibition, phosphorylation, and gene
expression. DOPA decarboxylase (B) converts L-DOPA to dopamine. Dopamine
beta-hydroxylase (C) converts dopamine to norepinephrine. COMT (D) is a
metabolic enzyme that degrades catecholamines.
Q10. Which dopamine pathway is primarily associated with the positive
symptoms of schizophrenia when overactive?
A) The nigrostriatal pathway
B) The mesolimbic pathway
C) The mesocortical pathway
D) The tuberoinfundibular pathway
Answer: B
Rationale: The mesolimbic dopamine pathway projects from the ventral
tegmental area (VTA) to the nucleus accumbens and limbic structures, and is the
primary pathway implicated in the positive symptoms of schizophrenia
(hallucinations, delusions, thought disorganization) when dopamine activity is
excessive. The nigrostriatal pathway regulates motor function. The mesocortical
pathway modulates cognition and executive function. The tuberoinfundibular
pathway inhibits prolactin release.
Q11. Which dopamine pathway is associated with extrapyramidal symptoms
when blocked by antipsychotic medications?
4
COMPLETE TEST BANK COMPREHENSIVE FINAL EXAM 300
QUESTIONS WITH NGN CASE SCENARIOS & DETAILED
RATIONALES 2026/2027 UPDATE
TABLE OF CONTENTS
SECTION 1: FOUNDATIONS OF PSYCHOPHARMACOLOGY ................ Q 1–60
SECTION 2: ANTIPSYCHOTIC MEDICATIONS ......................... Q 61–120
SECTION 3: MOOD STABILIZERS & BIPOLAR DISORDER ............... Q 121–170
SECTION 4: ANTIDEPRESSANTS & DEPRESSIVE DISORDERS ............ Q 171–230
SECTION 5: ANXIETY, TRAUMA & SUBSTANCE USE ................... Q 231–280
SECTION 6: SPECIAL POPULATIONS & NGN CASE SCENARIOS .......... Q 281–300
SECTION 1: FOUNDATIONS OF PSYCHOPHARMACOLOGY (Q 1–60)
Q1. What is the primary function of the blood-brain barrier?
A) To protect the brain from harmful substances in the bloodstream
B) To produce cerebrospinal fluid
C) To transmit action potentials
D) To synthesize neurotransmitters
Answer: A
Rationale: The blood-brain barrier (BBB) protects the brain from harmful
substances in the bloodstream while allowing essential nutrients to pass through.
It is formed by tight junctions between capillary endothelial cells, astrocyte foot
processes, and pericytes. The BBB restricts the passage of many drugs, which is a
major challenge in psychopharmacology.
Q2. Which of the following is NOT a monoamine neurotransmitter?
A) Dopamine
B) Serotonin
C) Acetylcholine
D) Norepinephrine
Answer: C
Rationale: Acetylcholine is not a monoamine; it is a cholinergic neurotransmitter
synthesized from choline and acetyl-CoA. Dopamine (A), serotonin (B), and
norepinephrine (D) are monoamines, which are characterized by a single amino
group connected to an aromatic ring by a two-carbon chain.
1
,Q3. What is the primary enzyme responsible for the degradation of acetylcholine?
A) Monoamine oxidase (MAO)
B) Catechol-O-methyltransferase (COMT)
C) Acetylcholinesterase (AChE)
D) Glutamic acid decarboxylase (GAD)
Answer: C
Rationale: Acetylcholinesterase (AChE) is the primary enzyme responsible for the
degradation of acetylcholine in the synaptic cleft. It hydrolyzes acetylcholine into
choline and acetate. MAO (A) and COMT (B) degrade monoamines. GAD (D)
synthesizes GABA.
Q4. Which enzyme degrades dopamine and norepinephrine in the synaptic cleft?
A) Acetylcholinesterase
B) Monoamine oxidase (MAO)
C) Glutamic acid decarboxylase
D) Choline acetyltransferase
Answer: B
Rationale: Monoamine oxidase (MAO) degrades dopamine and norepinephrine
(and serotonin) in the synaptic cleft and presynaptic terminal. There are two
isoforms: MAO-A (prefers serotonin and norepinephrine) and MAO-B (prefers
dopamine). Acetylcholinesterase (A) degrades acetylcholine. GAD (C) synthesizes
GABA. Choline acetyltransferase (D) synthesizes acetylcholine.
Q5. What is the primary excitatory neurotransmitter in the central nervous
system?
A) GABA
B) Glutamate
C) Serotonin
D) Glycine
Answer: B
Rationale: Glutamate is the primary excitatory neurotransmitter in the CNS. It acts
on ionotropic receptors (NMDA, AMPA, kainate) and metabotropic receptors.
Glutamate is involved in learning, memory, and synaptic plasticity. Excess
glutamate (excitotoxicity) is implicated in neurodegeneration. GABA (A) is the
2
,primary inhibitory neurotransmitter. Serotonin (C) is a monoamine. Glycine (D) is
an inhibitory neurotransmitter in the spinal cord.
Q6. The primary inhibitory neurotransmitter in the central nervous system is:
A) Glutamate
B) GABA
C) Norepinephrine
D) Dopamine
Answer: B
Rationale: GABA (gamma-aminobutyric acid) is the primary inhibitory
neurotransmitter in the CNS. It acts on GABA-A receptors (ionotropic, chloride
channel) and GABA-B receptors (metabotropic). GABA is synthesized from
glutamate via glutamic acid decarboxylase (GAD). GABAergic dysfunction is
implicated in anxiety disorders, epilepsy, and insomnia. Glutamate (A) is the
primary excitatory neurotransmitter. Norepinephrine (C) and dopamine (D) are
monoamines.
Q7. Dopamine is synthesized from which amino acid?
A) Tyrosine
B) Tryptophan
C) Glutamine
D) GABA
Answer: A
Rationale: Dopamine is synthesized from the amino acid tyrosine through a two-
step process: tyrosine → L-DOPA (via tyrosine hydroxylase) → dopamine (via
DOPA decarboxylase). This pathway also produces norepinephrine and
epinephrine. Tryptophan (B) is the precursor for serotonin. Glutamine (C) is a
precursor for glutamate and GABA. GABA (D) is a neurotransmitter, not an amino
acid precursor.
Q8. Serotonin is synthesized from which amino acid?
A) Tyrosine
B) Tryptophan
C) Glutamine
D) Glycine
Answer: B
3
, Rationale: Serotonin (5-HT) is synthesized from the amino acid tryptophan
through a two-step process: tryptophan → 5-hydroxytryptophan (5-HTP) (via
tryptophan hydroxylase) → serotonin (via L-aromatic amino acid decarboxylase).
Tryptophan is an essential amino acid that must be obtained through the diet.
Tyrosine (A) is the precursor for catecholamines. Glutamine (C) is a precursor for
glutamate and GABA. Glycine (D) is an inhibitory neurotransmitter.
Q9. The rate-limiting step in catecholamine synthesis is:
A) Tyrosine hydroxylase
B) DOPA decarboxylase
C) Dopamine beta-hydroxylase
D) COMT
Answer: A
Rationale: Tyrosine hydroxylase (TH) is the rate-limiting enzyme in catecholamine
(dopamine, norepinephrine, epinephrine) synthesis. It converts tyrosine to L-
DOPA. TH is regulated by feedback inhibition, phosphorylation, and gene
expression. DOPA decarboxylase (B) converts L-DOPA to dopamine. Dopamine
beta-hydroxylase (C) converts dopamine to norepinephrine. COMT (D) is a
metabolic enzyme that degrades catecholamines.
Q10. Which dopamine pathway is primarily associated with the positive
symptoms of schizophrenia when overactive?
A) The nigrostriatal pathway
B) The mesolimbic pathway
C) The mesocortical pathway
D) The tuberoinfundibular pathway
Answer: B
Rationale: The mesolimbic dopamine pathway projects from the ventral
tegmental area (VTA) to the nucleus accumbens and limbic structures, and is the
primary pathway implicated in the positive symptoms of schizophrenia
(hallucinations, delusions, thought disorganization) when dopamine activity is
excessive. The nigrostriatal pathway regulates motor function. The mesocortical
pathway modulates cognition and executive function. The tuberoinfundibular
pathway inhibits prolactin release.
Q11. Which dopamine pathway is associated with extrapyramidal symptoms
when blocked by antipsychotic medications?
4
