NSG 552 Psychopharmacology 2026–2027 | Wilkes University | PMHNP
Graduate Nursing Course | Psychopharmacology Exam 1, 2 & 3 Study
Guide | Neurotransmitters & Receptor Theory, Pharmacokinetics,
Pharmacodynamics, CYP450 Enzymes, Antidepressants, SSRIs, SNRIs,
TCAs, MAOIs, Antipsychotics, Mood Stabilizers, Lithium, Anxiolytics,
Stimulants, Substance Use Pharmacotherapy, Adverse Effects, Drug
Interactions, Polypharmacy, Medication Monitoring & Prescriptive
Management | Practice Questions, Answers & Detailed Rationales
Question 1: Which of the following pharmacokinetic processes is most directly
responsible for the termination of drug action at the synaptic cleft?
A. Absorption from the gastrointestinal tract
B. Distribution to adipose tissue
C. Renal excretion of the parent compound
D. Metabolism and reuptake mechanisms
CORRECT ANSWER: D. Metabolism and reuptake mechanisms
Rationale: The termination of drug action at the synaptic cleft is primarily
achieved through enzymatic degradation (metabolism) and reuptake into the
presynaptic neuron. While renal excretion and distribution affect overall drug
levels, they do not directly terminate the immediate synaptic action.
Question 2: A patient with a history of substance use disorder is prescribed a
medication with a high potential for abuse. Which schedule of controlled
substances would this medication most likely belong to?
A. Schedule I
B. Schedule II
C. Schedule III
D. Schedule IV
CORRECT ANSWER: B. Schedule II
Rationale: Schedule II drugs have a high potential for abuse which may lead to
severe psychological or physical dependence. Examples include morphine,
fentanyl, and amphetamines. Schedule I drugs have no accepted medical use,
while Schedules III and IV have lower abuse potential.
Question 3: The therapeutic index (TI) of a drug is a critical safety parameter. A
narrow therapeutic index indicates that the drug:
,A. Has a wide margin of safety
B. Requires no blood level monitoring
C. Has a small range between effective and toxic doses
D. Is safe for over-the-counter use
CORRECT ANSWER: C. Has a small range between effective and toxic doses
Rationale: The therapeutic index is the ratio of the toxic dose to the therapeutic
dose. A narrow TI indicates that the drug must be dosed carefully and often
monitored, as small increases in dose can lead to toxicity (e.g., lithium, warfarin).
Question 4: Which neurotransmitter is primarily implicated in the rewarding
effects of drugs of abuse and is a major target for medications treating
addiction?
A. Serotonin
B. Norepinephrine
C. Dopamine
D. Acetylcholine
CORRECT ANSWER: C. Dopamine
Rationale: The mesolimbic dopamine pathway is the primary neural substrate for
reward. Most addictive substances increase dopamine levels in the nucleus
accumbens, making it a primary target for pharmacotherapies aimed at reducing
craving and withdrawal.
Question 5: A patient is started on an SSRI for major depressive disorder. The
nurse should educate the patient that the full therapeutic effect may not be
seen for:
A. 24 to 48 hours
B. 2 to 4 days
C. 2 to 4 weeks
D. 24 hours
CORRECT ANSWER: C. 2 to 4 weeks
Rationale: SSRIs increase synaptic serotonin within hours, but the therapeutic
effect for depression typically requires 2 to 4 weeks. This latency is thought to be
,due to downstream neuroadaptive changes, such as receptor desensitization and
neurogenesis.
Question 6: Which of the following is a common side effect of first-generation
(typical) antipsychotics that is primarily related to dopamine D2 receptor
blockade in the nigrostriatal pathway?
A. Sedation
B. Weight gain
C. Extrapyramidal symptoms (EPS)
D. Orthostatic hypotension
CORRECT ANSWER: C. Extrapyramidal symptoms (EPS)
Rationale: EPS, such as dystonia, parkinsonism, and tardive dyskinesia, are caused
by D2 receptor blockade in the nigrostriatal pathway. Sedation and orthostatic
hypotension are more related to histaminergic and alpha-adrenergic blockade,
respectively.
Question 7: A client is prescribed a monoamine oxidase inhibitor (MAOI). Which
dietary education is critical to prevent a hypertensive crisis?
A. Avoid foods high in tyramine
B. Increase intake of folic acid
C. Avoid foods high in potassium
D. Increase fluid intake to 3 liters per day
CORRECT ANSWER: A. Avoid foods high in tyramine
Rationale: MAOIs inhibit the breakdown of tyramine. Ingesting tyramine-rich
foods (aged cheese, cured meats, fermented products) can lead to a massive
release of norepinephrine and a hypertensive crisis, which is a medical
emergency.
Question 8: The mechanism of action of benzodiazepines involves which of the
following receptor interactions?
A. Antagonism of serotonin 5-HT2A receptors
B. Positive allosteric modulation of GABA-A receptors
, C. Blockade of voltage-gated sodium channels
D. Inhibition of norepinephrine reuptake
CORRECT ANSWER: B. Positive allosteric modulation of GABA-A receptors
Rationale: Benzodiazepines bind to a specific site on the GABA-A receptor
complex and enhance the inhibitory effects of GABA by increasing the frequency
of chloride channel opening. They do not directly open the channel like
barbiturates.
Question 9: A patient taking lithium carbonate presents with nausea, vomiting,
coarse tremors, and confusion. The serum lithium level is 2.0 mEq/L. This clinical
picture is most consistent with:
A. Therapeutic response
B. Mild toxicity
C. Moderate to severe toxicity
D. Hypothyroidism
CORRECT ANSWER: C. Moderate to severe toxicity
Rationale: Lithium toxicity occurs at levels above 1.5 mEq/L. Mild toxicity (1.5-2.0
mEq/L) includes GI upset and fine tremor, whereas levels above 2.0 mEq/L are
associated with confusion, coarse tremors, and risk of seizures, indicating
moderate to severe toxicity requiring immediate intervention.
Question 10: In the context of psychopharmacology, pharmacodynamics refers
to:
A. The movement of drugs through the body
B. The study of genetic influences on drug response
C. The effect of the drug on the body and its mechanism of action
D. The process of drug absorption and distribution
CORRECT ANSWER: C. The effect of the drug on the body and its mechanism of
action
Rationale: Pharmacodynamics describes what the drug does to the body,
including receptor binding, signal transduction, and physiological effects.
Pharmacokinetics (A and D) describes what the body does to the drug.
Graduate Nursing Course | Psychopharmacology Exam 1, 2 & 3 Study
Guide | Neurotransmitters & Receptor Theory, Pharmacokinetics,
Pharmacodynamics, CYP450 Enzymes, Antidepressants, SSRIs, SNRIs,
TCAs, MAOIs, Antipsychotics, Mood Stabilizers, Lithium, Anxiolytics,
Stimulants, Substance Use Pharmacotherapy, Adverse Effects, Drug
Interactions, Polypharmacy, Medication Monitoring & Prescriptive
Management | Practice Questions, Answers & Detailed Rationales
Question 1: Which of the following pharmacokinetic processes is most directly
responsible for the termination of drug action at the synaptic cleft?
A. Absorption from the gastrointestinal tract
B. Distribution to adipose tissue
C. Renal excretion of the parent compound
D. Metabolism and reuptake mechanisms
CORRECT ANSWER: D. Metabolism and reuptake mechanisms
Rationale: The termination of drug action at the synaptic cleft is primarily
achieved through enzymatic degradation (metabolism) and reuptake into the
presynaptic neuron. While renal excretion and distribution affect overall drug
levels, they do not directly terminate the immediate synaptic action.
Question 2: A patient with a history of substance use disorder is prescribed a
medication with a high potential for abuse. Which schedule of controlled
substances would this medication most likely belong to?
A. Schedule I
B. Schedule II
C. Schedule III
D. Schedule IV
CORRECT ANSWER: B. Schedule II
Rationale: Schedule II drugs have a high potential for abuse which may lead to
severe psychological or physical dependence. Examples include morphine,
fentanyl, and amphetamines. Schedule I drugs have no accepted medical use,
while Schedules III and IV have lower abuse potential.
Question 3: The therapeutic index (TI) of a drug is a critical safety parameter. A
narrow therapeutic index indicates that the drug:
,A. Has a wide margin of safety
B. Requires no blood level monitoring
C. Has a small range between effective and toxic doses
D. Is safe for over-the-counter use
CORRECT ANSWER: C. Has a small range between effective and toxic doses
Rationale: The therapeutic index is the ratio of the toxic dose to the therapeutic
dose. A narrow TI indicates that the drug must be dosed carefully and often
monitored, as small increases in dose can lead to toxicity (e.g., lithium, warfarin).
Question 4: Which neurotransmitter is primarily implicated in the rewarding
effects of drugs of abuse and is a major target for medications treating
addiction?
A. Serotonin
B. Norepinephrine
C. Dopamine
D. Acetylcholine
CORRECT ANSWER: C. Dopamine
Rationale: The mesolimbic dopamine pathway is the primary neural substrate for
reward. Most addictive substances increase dopamine levels in the nucleus
accumbens, making it a primary target for pharmacotherapies aimed at reducing
craving and withdrawal.
Question 5: A patient is started on an SSRI for major depressive disorder. The
nurse should educate the patient that the full therapeutic effect may not be
seen for:
A. 24 to 48 hours
B. 2 to 4 days
C. 2 to 4 weeks
D. 24 hours
CORRECT ANSWER: C. 2 to 4 weeks
Rationale: SSRIs increase synaptic serotonin within hours, but the therapeutic
effect for depression typically requires 2 to 4 weeks. This latency is thought to be
,due to downstream neuroadaptive changes, such as receptor desensitization and
neurogenesis.
Question 6: Which of the following is a common side effect of first-generation
(typical) antipsychotics that is primarily related to dopamine D2 receptor
blockade in the nigrostriatal pathway?
A. Sedation
B. Weight gain
C. Extrapyramidal symptoms (EPS)
D. Orthostatic hypotension
CORRECT ANSWER: C. Extrapyramidal symptoms (EPS)
Rationale: EPS, such as dystonia, parkinsonism, and tardive dyskinesia, are caused
by D2 receptor blockade in the nigrostriatal pathway. Sedation and orthostatic
hypotension are more related to histaminergic and alpha-adrenergic blockade,
respectively.
Question 7: A client is prescribed a monoamine oxidase inhibitor (MAOI). Which
dietary education is critical to prevent a hypertensive crisis?
A. Avoid foods high in tyramine
B. Increase intake of folic acid
C. Avoid foods high in potassium
D. Increase fluid intake to 3 liters per day
CORRECT ANSWER: A. Avoid foods high in tyramine
Rationale: MAOIs inhibit the breakdown of tyramine. Ingesting tyramine-rich
foods (aged cheese, cured meats, fermented products) can lead to a massive
release of norepinephrine and a hypertensive crisis, which is a medical
emergency.
Question 8: The mechanism of action of benzodiazepines involves which of the
following receptor interactions?
A. Antagonism of serotonin 5-HT2A receptors
B. Positive allosteric modulation of GABA-A receptors
, C. Blockade of voltage-gated sodium channels
D. Inhibition of norepinephrine reuptake
CORRECT ANSWER: B. Positive allosteric modulation of GABA-A receptors
Rationale: Benzodiazepines bind to a specific site on the GABA-A receptor
complex and enhance the inhibitory effects of GABA by increasing the frequency
of chloride channel opening. They do not directly open the channel like
barbiturates.
Question 9: A patient taking lithium carbonate presents with nausea, vomiting,
coarse tremors, and confusion. The serum lithium level is 2.0 mEq/L. This clinical
picture is most consistent with:
A. Therapeutic response
B. Mild toxicity
C. Moderate to severe toxicity
D. Hypothyroidism
CORRECT ANSWER: C. Moderate to severe toxicity
Rationale: Lithium toxicity occurs at levels above 1.5 mEq/L. Mild toxicity (1.5-2.0
mEq/L) includes GI upset and fine tremor, whereas levels above 2.0 mEq/L are
associated with confusion, coarse tremors, and risk of seizures, indicating
moderate to severe toxicity requiring immediate intervention.
Question 10: In the context of psychopharmacology, pharmacodynamics refers
to:
A. The movement of drugs through the body
B. The study of genetic influences on drug response
C. The effect of the drug on the body and its mechanism of action
D. The process of drug absorption and distribution
CORRECT ANSWER: C. The effect of the drug on the body and its mechanism of
action
Rationale: Pharmacodynamics describes what the drug does to the body,
including receptor binding, signal transduction, and physiological effects.
Pharmacokinetics (A and D) describes what the body does to the drug.
