Wi l kes Uni versi ty
Passan School of Nursing
EXAMINATION 1
NSG 552: Advanced
Psychopharmacology
Questions and Verified Answers
Course: NSG 552 Psychopharmacology
Total Questions: 75 (Multiple Choice)
Academic Year: 2026 - 2027
Format: 100% Correct / Grade A
Latest 2026/2027 Update
,Section 1: Neurobiology and Neurotransmission Fundamentals (Q1-Q15)
Q1: A psychiatric nurse practitioner is explaining synaptic transmission to a nursing student. Which of the
following best describes the sequence of events at a chemical synapse?
A. Action potential arrives at the axon terminal, voltage-gated calcium channels open, neurotransmitter is released into
the synaptic cleft, and binds to postsynaptic receptors
B. Neurotransmitter diffuses across the synaptic cleft, opens voltage-gated sodium channels on the presynaptic
membrane, and triggers an action potential
C. Calcium ions directly bind to postsynaptic receptors, causing depolarization and subsequent neurotransmitter release
from the dendrite
D. The presynaptic neuron releases enzymes that degrade the postsynaptic membrane, allowing direct ion flow between
neurons
Correct Answer: A
Rationale: At a chemical synapse, an action potential reaches the axon terminal and opens voltage-gated calcium channels. The
influx of calcium triggers vesicular release of neurotransmitter into the synaptic cleft, where it binds to postsynaptic receptors.
Option B incorrectly describes voltage-gated sodium channels on the presynaptic membrane rather than calcium channels.
Option C misplaces calcium binding on the postsynaptic side. Option D describes a nonsensical process not found in human
neurobiology. This sequence is foundational to understanding all psychopharmacologic mechanisms at the synaptic level per the
Wilkes NSG 552 curriculum.
Q2: A patient with major depressive disorder is prescribed an SSRI. The prescriber explains that the
medication works by blocking the serotonin transporter (SERT). Which process does SERT normally mediate?
A. Synthesis of serotonin from tryptophan in the presynaptic terminal
B. Reuptake of serotonin from the synaptic cleft back into the presynaptic neuron [CORRECT]
C. Degradation of serotonin by monoamine oxidase in the synaptic cleft
D. Binding of serotonin to postsynaptic 5-HT receptors
Correct Answer: B
Rationale: The serotonin transporter (SERT) is responsible for the reuptake of serotonin from the synaptic cleft back into the
presynaptic neuron, thereby terminating the synaptic signal. SSRIs block SERT, increasing serotonin availability in the synapse.
Option A describes the role of tryptophan hydroxylase, not SERT. Option C describes the function of monoamine oxidase (MAO),
which degrades neurotransmitters intracellularly. Option D describes the function of postsynaptic receptors, not the transporter.
Understanding SERT function is essential for NSG 552 pharmacologic mechanism comprehension.
Q3: Which neurotransmitter system is primarily responsible for regulating arousal, attention, and the stress
response, and is the target of many antidepressant medications?
A. Serotonin (5-HT)
B. Dopamine (DA)
C. Norepinephrine (NE) [CORRECT]
D. Gamma-aminobutyric acid (GABA)
Correct Answer: C
Rationale: Norepinephrine (NE) is the primary neurotransmitter regulating arousal, attention, and the stress response through its
actions in the locus coeruleus and projection to the prefrontal cortex and limbic system. Many antidepressants, particularly SNRIs
and TCAs, target NE reuptake. Serotonin (5-HT) primarily regulates mood, sleep, appetite, and impulse control. Dopamine (DA)
governs reward, motivation, and motor control. GABA is the primary inhibitory neurotransmitter. While serotonin is also targeted
by antidepressants, the specific functions described in the question (arousal, attention, stress response) align with NE physiology
per NSG 552 neurobiology standards.
Q4: A nursing student asks about the difference between ionotropic and metabotropic receptors. Which of the
following is a correct statement?
, A. Ionotropic receptors are G-protein coupled receptors that activate second messenger systems
B. Metabotropic receptors are ligand-gated ion channels that produce fast, brief synaptic responses
C. Ionotropic receptors are ligand-gated ion channels that produce rapid synaptic responses, while metabotropic
receptors are G-protein coupled receptors that activate second messenger systems [CORRECT]
D. Both ionotropic and metabotropic receptors use the same intracellular signaling mechanism involving cAMP
Correct Answer: C
Rationale: Ionotropic receptors (ligand-gated ion channels) open directly when a neurotransmitter binds, allowing ions to flow
through and producing fast, brief postsynaptic potentials. Metabotropic receptors are G-protein coupled receptors (GPCRs) that
activate second messenger cascades such as cAMP, IP3, and DAG, producing slower but longer-lasting effects. Option A
incorrectly assigns GPCR characteristics to ionotropic receptors. Option B reverses the definitions. Option D incorrectly states
both use the same mechanism. This distinction is critical for understanding psychopharmacologic drug targets in the NSG 552
curriculum.
Q5: A patient with schizophrenia is found to have dysregulated dopamine activity in which brain region most
associated with positive symptoms such as hallucinations and delusions?
A. Prefrontal cortex
B. Mesolimbic pathway [CORRECT]
C. Cerebellum
D. Medullary reticular formation
Correct Answer: B
Rationale: The mesolimbic dopamine pathway, projecting from the ventral tegmental area (VTA) to the nucleus accumbens and
other limbic structures, is most associated with positive symptoms of schizophrenia (hallucinations, delusions).
Hyperdopaminergic activity in this pathway drives these symptoms, which is why antipsychotics with D2 receptor antagonism are
effective. The prefrontal cortex is associated with negative and cognitive symptoms (hypodopaminergic). The cerebellum
coordinates motor function. The medullary reticular formation regulates consciousness and arousal. Understanding
dopaminergic pathways is foundational to NSG 552 psychopharmacology education.
Q6: Which of the following best describes the role of GABA in the central nervous system?
A. GABA is the primary excitatory neurotransmitter involved in learning and memory consolidation
B. GABA is the primary inhibitory neurotransmitter that reduces neuronal excitability throughout the CNS
[CORRECT]
C. GABA acts exclusively as a neuromodulator and does not have direct synaptic effects
D. GABA is synthesized from dopamine through the action of monoamine oxidase
Correct Answer: B
Rationale: GABA (gamma-aminobutyric acid) is the primary inhibitory neurotransmitter in the central nervous system. It reduces
neuronal excitability by opening chloride channels (via GABA-A receptors) or increasing potassium conductance (via GABA-B
receptors), producing hyperpolarization. Option A incorrectly describes glutamate, not GABA. Option C is wrong because GABA
has direct synaptic effects through its ionotropic (GABA-A) and metabotropic (GABA-B) receptors. Option D is incorrect because
GABA is synthesized from glutamate by glutamic acid decarboxylase (GAD), not from dopamine. Benzodiazepines and Z-drugs
exert their effects by modulating GABA-A receptors, making GABA understanding essential for NSG 552.
Q7: A PMHNP is teaching about signal transduction. When a neurotransmitter binds to a G-protein coupled
receptor, which second messenger system is most commonly activated?
A. Adenylyl cyclase converting ATP to cyclic AMP (cAMP) [CORRECT]
B. Phospholipase A2 converting membrane phospholipids to arachidonic acid
C. Nitric oxide synthase converting arginine to nitric oxide
D. Tyrosine kinase directly phosphorylating intracellular proteins
Correct Answer: A
Rationale: The most common second messenger system activated by G-protein coupled receptors (GPCRs) involves Gs proteins
stimulating adenylyl cyclase, which converts ATP to cyclic AMP (cAMP). cAMP then activates protein kinase A (PKA), which
phosphorylates downstream targets. Other GPCR pathways include Gi proteins (inhibiting adenylyl cyclase) and Gq proteins
(activating phospholipase C, producing IP3 and DAG). Option B describes the PLA2 pathway, which is not the primary GPCR
Passan School of Nursing
EXAMINATION 1
NSG 552: Advanced
Psychopharmacology
Questions and Verified Answers
Course: NSG 552 Psychopharmacology
Total Questions: 75 (Multiple Choice)
Academic Year: 2026 - 2027
Format: 100% Correct / Grade A
Latest 2026/2027 Update
,Section 1: Neurobiology and Neurotransmission Fundamentals (Q1-Q15)
Q1: A psychiatric nurse practitioner is explaining synaptic transmission to a nursing student. Which of the
following best describes the sequence of events at a chemical synapse?
A. Action potential arrives at the axon terminal, voltage-gated calcium channels open, neurotransmitter is released into
the synaptic cleft, and binds to postsynaptic receptors
B. Neurotransmitter diffuses across the synaptic cleft, opens voltage-gated sodium channels on the presynaptic
membrane, and triggers an action potential
C. Calcium ions directly bind to postsynaptic receptors, causing depolarization and subsequent neurotransmitter release
from the dendrite
D. The presynaptic neuron releases enzymes that degrade the postsynaptic membrane, allowing direct ion flow between
neurons
Correct Answer: A
Rationale: At a chemical synapse, an action potential reaches the axon terminal and opens voltage-gated calcium channels. The
influx of calcium triggers vesicular release of neurotransmitter into the synaptic cleft, where it binds to postsynaptic receptors.
Option B incorrectly describes voltage-gated sodium channels on the presynaptic membrane rather than calcium channels.
Option C misplaces calcium binding on the postsynaptic side. Option D describes a nonsensical process not found in human
neurobiology. This sequence is foundational to understanding all psychopharmacologic mechanisms at the synaptic level per the
Wilkes NSG 552 curriculum.
Q2: A patient with major depressive disorder is prescribed an SSRI. The prescriber explains that the
medication works by blocking the serotonin transporter (SERT). Which process does SERT normally mediate?
A. Synthesis of serotonin from tryptophan in the presynaptic terminal
B. Reuptake of serotonin from the synaptic cleft back into the presynaptic neuron [CORRECT]
C. Degradation of serotonin by monoamine oxidase in the synaptic cleft
D. Binding of serotonin to postsynaptic 5-HT receptors
Correct Answer: B
Rationale: The serotonin transporter (SERT) is responsible for the reuptake of serotonin from the synaptic cleft back into the
presynaptic neuron, thereby terminating the synaptic signal. SSRIs block SERT, increasing serotonin availability in the synapse.
Option A describes the role of tryptophan hydroxylase, not SERT. Option C describes the function of monoamine oxidase (MAO),
which degrades neurotransmitters intracellularly. Option D describes the function of postsynaptic receptors, not the transporter.
Understanding SERT function is essential for NSG 552 pharmacologic mechanism comprehension.
Q3: Which neurotransmitter system is primarily responsible for regulating arousal, attention, and the stress
response, and is the target of many antidepressant medications?
A. Serotonin (5-HT)
B. Dopamine (DA)
C. Norepinephrine (NE) [CORRECT]
D. Gamma-aminobutyric acid (GABA)
Correct Answer: C
Rationale: Norepinephrine (NE) is the primary neurotransmitter regulating arousal, attention, and the stress response through its
actions in the locus coeruleus and projection to the prefrontal cortex and limbic system. Many antidepressants, particularly SNRIs
and TCAs, target NE reuptake. Serotonin (5-HT) primarily regulates mood, sleep, appetite, and impulse control. Dopamine (DA)
governs reward, motivation, and motor control. GABA is the primary inhibitory neurotransmitter. While serotonin is also targeted
by antidepressants, the specific functions described in the question (arousal, attention, stress response) align with NE physiology
per NSG 552 neurobiology standards.
Q4: A nursing student asks about the difference between ionotropic and metabotropic receptors. Which of the
following is a correct statement?
, A. Ionotropic receptors are G-protein coupled receptors that activate second messenger systems
B. Metabotropic receptors are ligand-gated ion channels that produce fast, brief synaptic responses
C. Ionotropic receptors are ligand-gated ion channels that produce rapid synaptic responses, while metabotropic
receptors are G-protein coupled receptors that activate second messenger systems [CORRECT]
D. Both ionotropic and metabotropic receptors use the same intracellular signaling mechanism involving cAMP
Correct Answer: C
Rationale: Ionotropic receptors (ligand-gated ion channels) open directly when a neurotransmitter binds, allowing ions to flow
through and producing fast, brief postsynaptic potentials. Metabotropic receptors are G-protein coupled receptors (GPCRs) that
activate second messenger cascades such as cAMP, IP3, and DAG, producing slower but longer-lasting effects. Option A
incorrectly assigns GPCR characteristics to ionotropic receptors. Option B reverses the definitions. Option D incorrectly states
both use the same mechanism. This distinction is critical for understanding psychopharmacologic drug targets in the NSG 552
curriculum.
Q5: A patient with schizophrenia is found to have dysregulated dopamine activity in which brain region most
associated with positive symptoms such as hallucinations and delusions?
A. Prefrontal cortex
B. Mesolimbic pathway [CORRECT]
C. Cerebellum
D. Medullary reticular formation
Correct Answer: B
Rationale: The mesolimbic dopamine pathway, projecting from the ventral tegmental area (VTA) to the nucleus accumbens and
other limbic structures, is most associated with positive symptoms of schizophrenia (hallucinations, delusions).
Hyperdopaminergic activity in this pathway drives these symptoms, which is why antipsychotics with D2 receptor antagonism are
effective. The prefrontal cortex is associated with negative and cognitive symptoms (hypodopaminergic). The cerebellum
coordinates motor function. The medullary reticular formation regulates consciousness and arousal. Understanding
dopaminergic pathways is foundational to NSG 552 psychopharmacology education.
Q6: Which of the following best describes the role of GABA in the central nervous system?
A. GABA is the primary excitatory neurotransmitter involved in learning and memory consolidation
B. GABA is the primary inhibitory neurotransmitter that reduces neuronal excitability throughout the CNS
[CORRECT]
C. GABA acts exclusively as a neuromodulator and does not have direct synaptic effects
D. GABA is synthesized from dopamine through the action of monoamine oxidase
Correct Answer: B
Rationale: GABA (gamma-aminobutyric acid) is the primary inhibitory neurotransmitter in the central nervous system. It reduces
neuronal excitability by opening chloride channels (via GABA-A receptors) or increasing potassium conductance (via GABA-B
receptors), producing hyperpolarization. Option A incorrectly describes glutamate, not GABA. Option C is wrong because GABA
has direct synaptic effects through its ionotropic (GABA-A) and metabotropic (GABA-B) receptors. Option D is incorrect because
GABA is synthesized from glutamate by glutamic acid decarboxylase (GAD), not from dopamine. Benzodiazepines and Z-drugs
exert their effects by modulating GABA-A receptors, making GABA understanding essential for NSG 552.
Q7: A PMHNP is teaching about signal transduction. When a neurotransmitter binds to a G-protein coupled
receptor, which second messenger system is most commonly activated?
A. Adenylyl cyclase converting ATP to cyclic AMP (cAMP) [CORRECT]
B. Phospholipase A2 converting membrane phospholipids to arachidonic acid
C. Nitric oxide synthase converting arginine to nitric oxide
D. Tyrosine kinase directly phosphorylating intracellular proteins
Correct Answer: A
Rationale: The most common second messenger system activated by G-protein coupled receptors (GPCRs) involves Gs proteins
stimulating adenylyl cyclase, which converts ATP to cyclic AMP (cAMP). cAMP then activates protein kinase A (PKA), which
phosphorylates downstream targets. Other GPCR pathways include Gi proteins (inhibiting adenylyl cyclase) and Gq proteins
(activating phospholipase C, producing IP3 and DAG). Option B describes the PLA2 pathway, which is not the primary GPCR
