NURS 6630 Midterm Exam 2026–2027
Complete Questions & Verified Answers
PSYCHOPHARMACOLOGY & NEUROBIOLOGY
Question 1
The primary mechanism of action for Benzodiazepines is:
A. Antagonism at the NMDA receptor
B. Inhibition of monoamine oxidase
C. Enhancement of GABA-A receptor-mediated chloride influx
D. Blockade of dopamine D2 receptors
Correct Answer: C
Rationale: Benzodiazepines enhance the inhibitory effects of
GABA by binding to the GABA-A receptor and increasing the
frequency of chloride channel opening, leading to
hyperpolarization of the neuron.
,Question 2
Which of the following is a key characteristic of a partial
agonist?
A. It produces a maximal response equal to a full agonist
B. It has zero efficacy and only blocks the receptor
C. It produces a sub-maximal response even when occupying
all receptors
D. It irreversibly binds to the receptor site
Correct Answer: C
Rationale: A partial agonist produces a sub-maximal response
even when all receptors are occupied, unlike a full agonist
which produces a maximal response.
Question 3
The therapeutic action of Selective Serotonin Reuptake
Inhibitors (SSRIs) is primarily due to:
A. Increased degradation of serotonin in the synaptic cleft
B. Blockade of serotonin receptors on the postsynaptic neuron
,C. Inhibition of serotonin reuptake into the presynaptic neuron
D. Direct stimulation of serotonin synthesis
Correct Answer: C
Rationale: SSRIs block the reuptake of serotonin into the
presynaptic neuron, increasing the availability of serotonin in
the synaptic cleft.
Question 4
Tardive Dyskinesia (TD) is a potential long-term side effect
associated with which class of drugs?
A. Atypical Antipsychotics
B. Typical (First-Generation) Antipsychotics
C. Benzodiazepines
D. Mood Stabilizers
Correct Answer: B
Rationale: Tardive dyskinesia is most commonly associated
with long-term use of typical (first-generation) antipsychotics
due to D2 receptor supersensitivity.
, Question 5
The "Black Box Warning" for antidepressants from the FDA
specifically concerns the potential for:
A. Hepatotoxicity
B. Increased risk of suicidality in children, adolescents, and
young adults
C. Hypertensive crisis
D. Development of Type II Diabetes
Correct Answer: B
Rationale: The FDA black box warning for antidepressants
warns of an increased risk of suicidality in children, adolescents,
and young adults aged 18–24.
Question 6
Which of the following is NOT considered a monoamine
neurotransmitter?
Complete Questions & Verified Answers
PSYCHOPHARMACOLOGY & NEUROBIOLOGY
Question 1
The primary mechanism of action for Benzodiazepines is:
A. Antagonism at the NMDA receptor
B. Inhibition of monoamine oxidase
C. Enhancement of GABA-A receptor-mediated chloride influx
D. Blockade of dopamine D2 receptors
Correct Answer: C
Rationale: Benzodiazepines enhance the inhibitory effects of
GABA by binding to the GABA-A receptor and increasing the
frequency of chloride channel opening, leading to
hyperpolarization of the neuron.
,Question 2
Which of the following is a key characteristic of a partial
agonist?
A. It produces a maximal response equal to a full agonist
B. It has zero efficacy and only blocks the receptor
C. It produces a sub-maximal response even when occupying
all receptors
D. It irreversibly binds to the receptor site
Correct Answer: C
Rationale: A partial agonist produces a sub-maximal response
even when all receptors are occupied, unlike a full agonist
which produces a maximal response.
Question 3
The therapeutic action of Selective Serotonin Reuptake
Inhibitors (SSRIs) is primarily due to:
A. Increased degradation of serotonin in the synaptic cleft
B. Blockade of serotonin receptors on the postsynaptic neuron
,C. Inhibition of serotonin reuptake into the presynaptic neuron
D. Direct stimulation of serotonin synthesis
Correct Answer: C
Rationale: SSRIs block the reuptake of serotonin into the
presynaptic neuron, increasing the availability of serotonin in
the synaptic cleft.
Question 4
Tardive Dyskinesia (TD) is a potential long-term side effect
associated with which class of drugs?
A. Atypical Antipsychotics
B. Typical (First-Generation) Antipsychotics
C. Benzodiazepines
D. Mood Stabilizers
Correct Answer: B
Rationale: Tardive dyskinesia is most commonly associated
with long-term use of typical (first-generation) antipsychotics
due to D2 receptor supersensitivity.
, Question 5
The "Black Box Warning" for antidepressants from the FDA
specifically concerns the potential for:
A. Hepatotoxicity
B. Increased risk of suicidality in children, adolescents, and
young adults
C. Hypertensive crisis
D. Development of Type II Diabetes
Correct Answer: B
Rationale: The FDA black box warning for antidepressants
warns of an increased risk of suicidality in children, adolescents,
and young adults aged 18–24.
Question 6
Which of the following is NOT considered a monoamine
neurotransmitter?
