NR 546 Week 4 Anxiolytic Assessment | 2026/2027
Edition | Real Exam Questions with 100% Verified
Correct Answers
Chamberlain University Advanced Psychopharmacology - Anxiolytic Medications
| Expert-Verified Q&A | Certification-Ready Format
This 2026/2027 Chamberlain University Advanced Psychopharmacology (NR 546) Week 4
Anxiolytic evaluation consolidates fifty (50) multiple-choice items drawn from the core domains
of anxiolytic pharmacology. It emphasizes the critical integration of GABA receptor mechanisms,
benzodiazepine and non-benzodiazepine pharmacokinetics, therapeutic indications for anxiety
and panic disorders, adverse effect profiles, and advanced nursing considerations to ensure safe,
effective, and evidence-based psychiatric prescribing. Every item has been expert-verified with
fully correct answers and detailed rationales, designed for accurate self-evaluation and
certification-level readiness. The assessment reflects current evidence-based psychiatric
medication standards and the 2026/2027 Chamberlain NR 546 Week 4 curriculum, providing
candidates with a rigorous framework for evaluating comprehension of GABAergic
neurotransmission, benzodiazepine and buspirone pharmacology, drug interactions and special
populations, withdrawal management, and the clinical standards that underpin responsible
anxiolytic prescribing.
Content Area Overview
Content Area Questions Key Topics Weight
GABAergic Mechanisms 13 GABA-A chloride channels, 25%
and Benzodiazepine benzodiazepine binding,
Pharmacology alpha subunits, flumazenil,
Z-drugs, barbiturates
Non-Benzodiazepine 10 Buspirone (5-HT1A), 20%
Anxiolytics and Buspirone hydroxyzine,
pregabalin/gabapentin,
SSRIs/SNRIs, beta-
blockers, mirtazapine
Pharmacokinetics, Drug 10 LOT agents, 20%
Interactions, and Special glucuronidation,
Populations CYP3A4/2C19, Beers
Criteria, pregnancy,
grapefruit, substance use
Adverse Effects, Toxicity, 10 Respiratory depression, 20%
Dependence, and withdrawal seizures,
Withdrawal Management tapering, paradoxical
reactions, amnesia,
rebound anxiety
Nursing Considerations, 7 Substance screening, CNS- 15%
Patient Education, and depressant avoidance,
Prescribing Guidelines short-term bridging,
monitoring, PDMP, safe
dosing
Total 50 All 2026/2027 NR 546 100%
Week 4 content
domains
,Examination Questions
Domain: GABAergic Mechanisms and Benzodiazepine Pharmacology (25%)
1. Gamma-aminobutyric acid (GABA) is the primary inhibitory neurotransmitter in
the central nervous system, and its activation produces which effect?
A. CNS excitation and seizure activity
B. Neuronal inhibition by opening chloride channels and hyperpolarizing the neuron
C. Increased release of glutamate
D. Direct stimulation of dopamine receptors
Correct Answer: B
Rationale: GABA binds to GABA-A receptors, opening chloride ion channels that allow chloride
to enter the neuron, causing hyperpolarization and a net inhibitory effect that reduces neuronal
firing; this is the basis of anxiolytic, sedative, and anticonvulsant activity.
2. Benzodiazepines produce their therapeutic effects by:
A. Binding to a specific site on the GABA-A receptor and enhancing the inhibitory effect of
endogenous GABA
B. Directly opening the chloride channel of the GABA-A receptor
C. Antagonizing glutamate receptors
D. Blocking the reuptake of GABA
Correct Answer: A
Rationale: Benzodiazepines bind to a distinct site on the GABA-A receptor complex (between
alpha and gamma subunits) and increase the frequency of chloride channel opening in response
to GABA, enhancing endogenous inhibition rather than directly opening the channel themselves.
3. The benzodiazepine binding site is located on the GABA-A receptor at the
interface between which subunits?
A. Alpha and beta subunits
B. Alpha and gamma subunits
C. Beta and gamma subunits
D. Two alpha subunits
Correct Answer: B
Rationale: The benzodiazepine binding site is located in a pocket between the alpha and gamma
subunits of the pentameric GABA-A receptor; the presence of a gamma subunit is required for
benzodiazepine sensitivity, and the alpha subunit subtype influences the drug's effects.
4. Which benzodiazepine is most appropriate for rapid termination of an acute
seizure due to its intravenous availability and durable CNS action?
A. Lorazepam
B. Clonazepam
C. Chlordiazepoxide
D. Diazepam
Correct Answer: A
Rationale: Lorazepam is preferred for acute seizure termination because its relatively rapid
onset and longer duration of action in the CNS (due to less lipid redistribution) make it effective
and durable for status epilepticus; it is available in intravenous form for this use.
, 5. The relatively rapid onset of action of alprazolam makes it particularly effective
for the acute management of:
A. Alcohol withdrawal tremor
B. Panic disorder and acute panic attacks
C. Generalized anxiety with chronic symptoms
D. Insomnia in older adults
Correct Answer: B
Rationale: Alprazolam has a short onset and short half-life, making it effective for the rapid
relief of acute panic symptoms; however, its rapid onset and short duration also contribute to a
higher risk of dependence, rebound anxiety, and withdrawal.
6. Compared to benzodiazepines, barbiturates differ in that they:
A. Do not act on the GABA-A receptor
B. Prolong the duration of chloride channel opening and have a narrower therapeutic index
C. Have a wider therapeutic index and are safer in overdose
D. Have no risk of dependence
Correct Answer: B
Rationale: Barbiturates prolong the duration of chloride channel opening (whereas
benzodiazepines increase opening frequency) and, lacking a ceiling effect, have a narrow
therapeutic index with significant respiratory depression and overdose risk, making them
largely obsolete as anxiolytics.
7. Flumazenil (Romazicon) is a benzodiazepine receptor antagonist used to:
A. Potentiate GABA activity
B. Treat benzodiazepine withdrawal
C. Enhance the sedative effects of benzodiazepines
D. Reverse benzodiazepine sedation and overdose, though with seizure risk
Correct Answer: D
Rationale: Flumazenil competitively antagonizes benzodiazepines at the GABA-A receptor and
is used to reverse benzodiazepine sedation or overdose; it carries a risk of precipitating seizures,
especially in benzodiazepine-dependent patients and those with mixed overdoses.
8. Which benzodiazepine has the longest elimination half-life and active
metabolites, making it useful for alcohol withdrawal but associated with prolonged
sedation?
A. Midazolam
B. Alprazolam
C. Oxazepam
D. Diazepam
Correct Answer: D
Rationale: Diazepam has a long elimination half-life and is metabolized to active metabolites
(including nordiazepam), producing prolonged sedation; this long duration is useful for
tapering in alcohol withdrawal but increases the risk of accumulation and hangover.
9. The presence of which GABA-A receptor alpha subunit is most associated with the
sedative and amnestic effects of benzodiazepines?
Edition | Real Exam Questions with 100% Verified
Correct Answers
Chamberlain University Advanced Psychopharmacology - Anxiolytic Medications
| Expert-Verified Q&A | Certification-Ready Format
This 2026/2027 Chamberlain University Advanced Psychopharmacology (NR 546) Week 4
Anxiolytic evaluation consolidates fifty (50) multiple-choice items drawn from the core domains
of anxiolytic pharmacology. It emphasizes the critical integration of GABA receptor mechanisms,
benzodiazepine and non-benzodiazepine pharmacokinetics, therapeutic indications for anxiety
and panic disorders, adverse effect profiles, and advanced nursing considerations to ensure safe,
effective, and evidence-based psychiatric prescribing. Every item has been expert-verified with
fully correct answers and detailed rationales, designed for accurate self-evaluation and
certification-level readiness. The assessment reflects current evidence-based psychiatric
medication standards and the 2026/2027 Chamberlain NR 546 Week 4 curriculum, providing
candidates with a rigorous framework for evaluating comprehension of GABAergic
neurotransmission, benzodiazepine and buspirone pharmacology, drug interactions and special
populations, withdrawal management, and the clinical standards that underpin responsible
anxiolytic prescribing.
Content Area Overview
Content Area Questions Key Topics Weight
GABAergic Mechanisms 13 GABA-A chloride channels, 25%
and Benzodiazepine benzodiazepine binding,
Pharmacology alpha subunits, flumazenil,
Z-drugs, barbiturates
Non-Benzodiazepine 10 Buspirone (5-HT1A), 20%
Anxiolytics and Buspirone hydroxyzine,
pregabalin/gabapentin,
SSRIs/SNRIs, beta-
blockers, mirtazapine
Pharmacokinetics, Drug 10 LOT agents, 20%
Interactions, and Special glucuronidation,
Populations CYP3A4/2C19, Beers
Criteria, pregnancy,
grapefruit, substance use
Adverse Effects, Toxicity, 10 Respiratory depression, 20%
Dependence, and withdrawal seizures,
Withdrawal Management tapering, paradoxical
reactions, amnesia,
rebound anxiety
Nursing Considerations, 7 Substance screening, CNS- 15%
Patient Education, and depressant avoidance,
Prescribing Guidelines short-term bridging,
monitoring, PDMP, safe
dosing
Total 50 All 2026/2027 NR 546 100%
Week 4 content
domains
,Examination Questions
Domain: GABAergic Mechanisms and Benzodiazepine Pharmacology (25%)
1. Gamma-aminobutyric acid (GABA) is the primary inhibitory neurotransmitter in
the central nervous system, and its activation produces which effect?
A. CNS excitation and seizure activity
B. Neuronal inhibition by opening chloride channels and hyperpolarizing the neuron
C. Increased release of glutamate
D. Direct stimulation of dopamine receptors
Correct Answer: B
Rationale: GABA binds to GABA-A receptors, opening chloride ion channels that allow chloride
to enter the neuron, causing hyperpolarization and a net inhibitory effect that reduces neuronal
firing; this is the basis of anxiolytic, sedative, and anticonvulsant activity.
2. Benzodiazepines produce their therapeutic effects by:
A. Binding to a specific site on the GABA-A receptor and enhancing the inhibitory effect of
endogenous GABA
B. Directly opening the chloride channel of the GABA-A receptor
C. Antagonizing glutamate receptors
D. Blocking the reuptake of GABA
Correct Answer: A
Rationale: Benzodiazepines bind to a distinct site on the GABA-A receptor complex (between
alpha and gamma subunits) and increase the frequency of chloride channel opening in response
to GABA, enhancing endogenous inhibition rather than directly opening the channel themselves.
3. The benzodiazepine binding site is located on the GABA-A receptor at the
interface between which subunits?
A. Alpha and beta subunits
B. Alpha and gamma subunits
C. Beta and gamma subunits
D. Two alpha subunits
Correct Answer: B
Rationale: The benzodiazepine binding site is located in a pocket between the alpha and gamma
subunits of the pentameric GABA-A receptor; the presence of a gamma subunit is required for
benzodiazepine sensitivity, and the alpha subunit subtype influences the drug's effects.
4. Which benzodiazepine is most appropriate for rapid termination of an acute
seizure due to its intravenous availability and durable CNS action?
A. Lorazepam
B. Clonazepam
C. Chlordiazepoxide
D. Diazepam
Correct Answer: A
Rationale: Lorazepam is preferred for acute seizure termination because its relatively rapid
onset and longer duration of action in the CNS (due to less lipid redistribution) make it effective
and durable for status epilepticus; it is available in intravenous form for this use.
, 5. The relatively rapid onset of action of alprazolam makes it particularly effective
for the acute management of:
A. Alcohol withdrawal tremor
B. Panic disorder and acute panic attacks
C. Generalized anxiety with chronic symptoms
D. Insomnia in older adults
Correct Answer: B
Rationale: Alprazolam has a short onset and short half-life, making it effective for the rapid
relief of acute panic symptoms; however, its rapid onset and short duration also contribute to a
higher risk of dependence, rebound anxiety, and withdrawal.
6. Compared to benzodiazepines, barbiturates differ in that they:
A. Do not act on the GABA-A receptor
B. Prolong the duration of chloride channel opening and have a narrower therapeutic index
C. Have a wider therapeutic index and are safer in overdose
D. Have no risk of dependence
Correct Answer: B
Rationale: Barbiturates prolong the duration of chloride channel opening (whereas
benzodiazepines increase opening frequency) and, lacking a ceiling effect, have a narrow
therapeutic index with significant respiratory depression and overdose risk, making them
largely obsolete as anxiolytics.
7. Flumazenil (Romazicon) is a benzodiazepine receptor antagonist used to:
A. Potentiate GABA activity
B. Treat benzodiazepine withdrawal
C. Enhance the sedative effects of benzodiazepines
D. Reverse benzodiazepine sedation and overdose, though with seizure risk
Correct Answer: D
Rationale: Flumazenil competitively antagonizes benzodiazepines at the GABA-A receptor and
is used to reverse benzodiazepine sedation or overdose; it carries a risk of precipitating seizures,
especially in benzodiazepine-dependent patients and those with mixed overdoses.
8. Which benzodiazepine has the longest elimination half-life and active
metabolites, making it useful for alcohol withdrawal but associated with prolonged
sedation?
A. Midazolam
B. Alprazolam
C. Oxazepam
D. Diazepam
Correct Answer: D
Rationale: Diazepam has a long elimination half-life and is metabolized to active metabolites
(including nordiazepam), producing prolonged sedation; this long duration is useful for
tapering in alcohol withdrawal but increases the risk of accumulation and hangover.
9. The presence of which GABA-A receptor alpha subunit is most associated with the
sedative and amnestic effects of benzodiazepines?
