Stahl's Essential Psychopharmacology
Neuroscientific Basis and Practical Applications
5th Edition
Author(s)Stephen M. Stahl
TEST BANK
Question 1
Reference: Ch. 1, Chemical Neurotransmission
Question Stem: A nursing student is reviewing the mechanism
of vesicular release for a psychopharmacology exam. Which of
the following sequences most accurately describes the process
of neurotransmitter release from the presynaptic neuron into
the synaptic cleft?
Options:
A. Docking → Priming → Synthesis → Fusion
B. Synthesis → Packaging → Fusion → Release
C. Synthesis → Priming → Docking → Fusion Pore Opening
D. Reuptake → Degradation → Docking → Fusion
Correct Answer: C
Rationales:
, • Correct: Neurotransmitter molecules are first synthesized,
then synaptic vesicles are "primed" (made ready for
release), followed by "docking" where the vesicle attaches
to the presynaptic membrane, and finally, a fusion pore
opens to release the contents into the cleft. (Ch. 1,
Chemical Neurotransmission)
• Incorrect A: Docking and priming occur after synthesis, not
before. The sequence is out of order.
• Incorrect B: While synthesis and packaging are initial steps,
"Fusion" and "Release" are not distinct sequential steps;
fusion is the mechanism of release. This option omits the
critical preparatory steps of priming and docking.
• Incorrect D: Reuptake and degradation are processes for
terminating the signal after release, not part of the
preparatory release mechanism.
Teaching Point: Neurotransmitter release is a precise, multi-
step cascade culminating in vesicle fusion.
Citation: Ch. 1, Chemical Neurotransmission
Question 2
Reference: Ch. 1, Chemical Neurotransmission
Question Stem: A patient with major depressive disorder is
prescribed a selective serotonin reuptake inhibitor (SSRI). Based
,on the mechanism of action of SSRIs, what is the primary
immediate effect on the serotonergic synapse?
Options:
A. Direct agonism of postsynaptic 5-HT1A receptors.
B. Inhibition of monoamine oxidase (MAO) enzyme in the
presynaptic terminal.
C. Blockade of the serotonin transporter (SERT) on the
presynaptic neuron.
D. Enhancement of vesicular release of serotonin into the
synaptic cleft.
Correct Answer: C
Rationales:
• Correct: SSRIs work by binding to and blocking the
serotonin transporter (SERT), which is responsible for the
reuptake of serotonin from the synaptic cleft back into the
presynaptic neuron. (Ch. 1, Chemical Neurotransmission)
• Incorrect A: SSRIs do not directly agonize postsynaptic
receptors; their action is presynaptic/on the transporter,
leading to indirect changes in receptor signaling over time.
• Incorrect B: This describes the mechanism of Monoamine
Oxidase Inhibitors (MAOIs), not SSRIs.
• Incorrect D: SSRIs do not directly affect the vesicular
release machinery. They work on the reuptake process
after release has occurred.
, Teaching Point: SSRIs increase synaptic serotonin by blocking its
reuptake transporter, not by enhancing release.
Citation: Ch. 1, Chemical Neurotransmission
Question 3
Reference: Ch. 1, Chemical Neurotransmission
Question Stem: A psychiatric-mental health nurse practitioner
(PMHNP) is explaining the role of autoreceptors to a patient.
The PMHNP correctly states that the primary function of
presynaptic autoreceptors is to:
Options:
A. Amplify the neurotransmitter's signal on the postsynaptic
neuron.
B. Provide negative feedback to inhibit further neurotransmitter
release.
C. Transport the neurotransmitter back into the presynaptic
terminal for repackaging.
D. Convert the precursor molecule into the active
neurotransmitter.
Correct Answer: B
Rationales:
• Correct: Autoreceptors are located on the presynaptic
neuron and are activated by the neuron's own
neurotransmitter. Their primary role is to provide negative
Neuroscientific Basis and Practical Applications
5th Edition
Author(s)Stephen M. Stahl
TEST BANK
Question 1
Reference: Ch. 1, Chemical Neurotransmission
Question Stem: A nursing student is reviewing the mechanism
of vesicular release for a psychopharmacology exam. Which of
the following sequences most accurately describes the process
of neurotransmitter release from the presynaptic neuron into
the synaptic cleft?
Options:
A. Docking → Priming → Synthesis → Fusion
B. Synthesis → Packaging → Fusion → Release
C. Synthesis → Priming → Docking → Fusion Pore Opening
D. Reuptake → Degradation → Docking → Fusion
Correct Answer: C
Rationales:
, • Correct: Neurotransmitter molecules are first synthesized,
then synaptic vesicles are "primed" (made ready for
release), followed by "docking" where the vesicle attaches
to the presynaptic membrane, and finally, a fusion pore
opens to release the contents into the cleft. (Ch. 1,
Chemical Neurotransmission)
• Incorrect A: Docking and priming occur after synthesis, not
before. The sequence is out of order.
• Incorrect B: While synthesis and packaging are initial steps,
"Fusion" and "Release" are not distinct sequential steps;
fusion is the mechanism of release. This option omits the
critical preparatory steps of priming and docking.
• Incorrect D: Reuptake and degradation are processes for
terminating the signal after release, not part of the
preparatory release mechanism.
Teaching Point: Neurotransmitter release is a precise, multi-
step cascade culminating in vesicle fusion.
Citation: Ch. 1, Chemical Neurotransmission
Question 2
Reference: Ch. 1, Chemical Neurotransmission
Question Stem: A patient with major depressive disorder is
prescribed a selective serotonin reuptake inhibitor (SSRI). Based
,on the mechanism of action of SSRIs, what is the primary
immediate effect on the serotonergic synapse?
Options:
A. Direct agonism of postsynaptic 5-HT1A receptors.
B. Inhibition of monoamine oxidase (MAO) enzyme in the
presynaptic terminal.
C. Blockade of the serotonin transporter (SERT) on the
presynaptic neuron.
D. Enhancement of vesicular release of serotonin into the
synaptic cleft.
Correct Answer: C
Rationales:
• Correct: SSRIs work by binding to and blocking the
serotonin transporter (SERT), which is responsible for the
reuptake of serotonin from the synaptic cleft back into the
presynaptic neuron. (Ch. 1, Chemical Neurotransmission)
• Incorrect A: SSRIs do not directly agonize postsynaptic
receptors; their action is presynaptic/on the transporter,
leading to indirect changes in receptor signaling over time.
• Incorrect B: This describes the mechanism of Monoamine
Oxidase Inhibitors (MAOIs), not SSRIs.
• Incorrect D: SSRIs do not directly affect the vesicular
release machinery. They work on the reuptake process
after release has occurred.
, Teaching Point: SSRIs increase synaptic serotonin by blocking its
reuptake transporter, not by enhancing release.
Citation: Ch. 1, Chemical Neurotransmission
Question 3
Reference: Ch. 1, Chemical Neurotransmission
Question Stem: A psychiatric-mental health nurse practitioner
(PMHNP) is explaining the role of autoreceptors to a patient.
The PMHNP correctly states that the primary function of
presynaptic autoreceptors is to:
Options:
A. Amplify the neurotransmitter's signal on the postsynaptic
neuron.
B. Provide negative feedback to inhibit further neurotransmitter
release.
C. Transport the neurotransmitter back into the presynaptic
terminal for repackaging.
D. Convert the precursor molecule into the active
neurotransmitter.
Correct Answer: B
Rationales:
• Correct: Autoreceptors are located on the presynaptic
neuron and are activated by the neuron's own
neurotransmitter. Their primary role is to provide negative
