CHAMBERLAIN UNIVERSITY – NR 546 ADVANCED
PHARMACOLOGY: PSYCHOPHARMACOLOGY FOR THE
PSYCHIATRIC-MENTAL HEALTH NURSE PRACTITIONER
FINAL EXAM – QUESTIONS AND ANSWERS | 2026/2027
LATEST UPDATE
SECTION 1: WEEK 5 — MOOD DISORDERS AND
ANTIDEPRESSANT PHARMACOTHERAPY
Questions 1–30
1. Which pharmacologic strategy is generally considered an appropriate first-line approach
for a patient with major depressive disorder without contraindications?
A) Initiate an SSRI and monitor therapeutic response and adverse effects
B) Begin an MAOI immediately because it has the broadest mechanism
C) Use lithium monotherapy regardless of the patient's diagnosis
D) Begin a first-generation antipsychotic as primary antidepressant therapy
Correct Answer: Initiate an SSRI and monitor therapeutic response and adverse effects
Rationale: SSRIs are commonly used as first-line pharmacotherapy for major depressive
disorder because they have established efficacy and generally favorable tolerability. Treatment
should include monitoring for response, adverse effects, suicidality, and adherence. MAOIs and
antipsychotics have more specific indications and are not routinely first choices for
uncomplicated major depression.
2. What neurotransmitter change is most directly associated with the primary mechanism
of SSRIs?
A) Increased dopamine breakdown
B) Increased serotonin availability in the synaptic cleft
C) Reduced norepinephrine synthesis
D) Increased acetylcholine metabolism
Correct Answer: Increased serotonin availability in the synaptic cleft
,Rationale: SSRIs inhibit the serotonin transporter, reducing serotonin reuptake into the
presynaptic neuron. This initially increases serotonin availability in the synaptic cleft and
eventually produces adaptive receptor changes associated with therapeutic effects. The
mechanism does not primarily depend on increasing acetylcholine or reducing dopamine
synthesis.
3. A patient taking sertraline reports mild nausea during the first several days of therapy
but otherwise feels well. Which response is most appropriate?
A) Permanently discontinue sertraline
B) Add an MAOI to overcome the nausea
C) Explain that gastrointestinal effects can occur early and monitor symptoms
D) Double the dose immediately
Correct Answer: Explain that gastrointestinal effects can occur early and monitor
symptoms
Rationale: Gastrointestinal symptoms such as nausea can occur when initiating SSRIs and may
lessen as treatment continues. The patient should be educated about expected adverse effects and
monitored for worsening symptoms. Abrupt discontinuation or immediate dose escalation is
inappropriate when symptoms are mild and there are no signs of a serious reaction.
4. Which antidepressant is particularly useful when medication adherence is a concern
because of its relatively long half-life?
A) Paroxetine
B) Fluvoxamine
C) Sertraline
D) Fluoxetine
Correct Answer: Fluoxetine
Rationale: Fluoxetine has a relatively long half-life compared with many other SSRIs, including
an active metabolite that persists for an extended period. This characteristic can reduce the
severity of discontinuation symptoms after missed doses. However, its long duration also means
adverse effects and drug interactions may persist after discontinuation.
5. Why should paroxetine generally be used cautiously in older adults?
A) It has substantial anticholinergic effects
B) It has no serotonergic activity
,C) It universally causes severe hypertension
D) It is ineffective for depressive symptoms
Correct Answer: It has substantial anticholinergic effects
Rationale: Paroxetine has more anticholinergic activity than many other SSRIs, which can
increase risks such as confusion, constipation, urinary retention, and cognitive impairment in
older adults. Older patients are particularly vulnerable to anticholinergic adverse effects.
Medication selection should therefore consider age, comorbidities, polypharmacy, and fall risk.
6. A patient taking citalopram has a history of prolonged QT interval. Which concern
should guide medication selection?
A) Increased risk of nephrotoxicity
B) Increased risk of cardiac arrhythmia
C) Increased risk of severe hypoglycemia
D) Increased risk of cholinergic crisis
Correct Answer: Increased risk of cardiac arrhythmia
Rationale: Citalopram can produce dose-dependent QT prolongation, creating concern for
potentially serious ventricular arrhythmias in susceptible individuals. Risk is especially
important in older adults and patients with cardiac disease or other QT-prolonging medications.
Appropriate dosing, medication review, and risk assessment are important before prescribing.
7. Which finding most strongly suggests serotonin syndrome in a patient taking
serotonergic medications?
A) Mild dry mouth alone
B) Increased appetite without behavioral changes
C) Hyperthermia, agitation, autonomic instability, and neuromuscular abnormalities
D) Isolated urinary frequency
Correct Answer: Hyperthermia, agitation, autonomic instability, and neuromuscular
abnormalities
Rationale: Serotonin syndrome results from excessive serotonergic activity and can present with
mental-status changes, autonomic instability, hyperthermia, and neuromuscular findings such as
clonus or hyperreflexia. Severe cases can become life-threatening. Recognition is important
because treatment requires stopping causative serotonergic agents and providing appropriate
supportive care.
, 8. Which medication class requires particular dietary and drug-interaction precautions
because of inhibition of monoamine oxidase?
A) SSRIs
B) SNRIs
C) MAOIs
D) NDRIs
Correct Answer: MAOIs
Rationale: Monoamine oxidase inhibitors interfere with the enzymatic breakdown of
monoamines and can interact dangerously with serotonergic medications and certain
sympathomimetic or tyramine-containing substances. These interactions can cause hypertensive
or serotonergic toxicity. Careful medication reconciliation and patient education are essential
when MAOIs are prescribed.
9. A patient taking an antidepressant develops severe agitation, sweating, diarrhea, tremor,
and clonus after another serotonergic medication is added. What complication should be
suspected?
A) Serotonin syndrome
B) Neuroleptic malignant syndrome
C) Anticholinergic toxicity
D) Lithium-induced nephropathy
Correct Answer: Serotonin syndrome
Rationale: The combination of autonomic symptoms, gastrointestinal effects, agitation, tremor,
and clonus strongly suggests serotonin toxicity. Serotonin syndrome can occur when multiple
serotonergic medications are combined. Prompt recognition and discontinuation of serotonergic
agents are important, with supportive management based on clinical severity.
10. Which antidepressant mechanism is associated with bupropion?
A) Serotonin reuptake inhibition only
B) Norepinephrine-dopamine reuptake inhibition
C) Irreversible monoamine oxidase inhibition
D) Direct NMDA receptor blockade
Correct Answer: Norepinephrine-dopamine reuptake inhibition
PHARMACOLOGY: PSYCHOPHARMACOLOGY FOR THE
PSYCHIATRIC-MENTAL HEALTH NURSE PRACTITIONER
FINAL EXAM – QUESTIONS AND ANSWERS | 2026/2027
LATEST UPDATE
SECTION 1: WEEK 5 — MOOD DISORDERS AND
ANTIDEPRESSANT PHARMACOTHERAPY
Questions 1–30
1. Which pharmacologic strategy is generally considered an appropriate first-line approach
for a patient with major depressive disorder without contraindications?
A) Initiate an SSRI and monitor therapeutic response and adverse effects
B) Begin an MAOI immediately because it has the broadest mechanism
C) Use lithium monotherapy regardless of the patient's diagnosis
D) Begin a first-generation antipsychotic as primary antidepressant therapy
Correct Answer: Initiate an SSRI and monitor therapeutic response and adverse effects
Rationale: SSRIs are commonly used as first-line pharmacotherapy for major depressive
disorder because they have established efficacy and generally favorable tolerability. Treatment
should include monitoring for response, adverse effects, suicidality, and adherence. MAOIs and
antipsychotics have more specific indications and are not routinely first choices for
uncomplicated major depression.
2. What neurotransmitter change is most directly associated with the primary mechanism
of SSRIs?
A) Increased dopamine breakdown
B) Increased serotonin availability in the synaptic cleft
C) Reduced norepinephrine synthesis
D) Increased acetylcholine metabolism
Correct Answer: Increased serotonin availability in the synaptic cleft
,Rationale: SSRIs inhibit the serotonin transporter, reducing serotonin reuptake into the
presynaptic neuron. This initially increases serotonin availability in the synaptic cleft and
eventually produces adaptive receptor changes associated with therapeutic effects. The
mechanism does not primarily depend on increasing acetylcholine or reducing dopamine
synthesis.
3. A patient taking sertraline reports mild nausea during the first several days of therapy
but otherwise feels well. Which response is most appropriate?
A) Permanently discontinue sertraline
B) Add an MAOI to overcome the nausea
C) Explain that gastrointestinal effects can occur early and monitor symptoms
D) Double the dose immediately
Correct Answer: Explain that gastrointestinal effects can occur early and monitor
symptoms
Rationale: Gastrointestinal symptoms such as nausea can occur when initiating SSRIs and may
lessen as treatment continues. The patient should be educated about expected adverse effects and
monitored for worsening symptoms. Abrupt discontinuation or immediate dose escalation is
inappropriate when symptoms are mild and there are no signs of a serious reaction.
4. Which antidepressant is particularly useful when medication adherence is a concern
because of its relatively long half-life?
A) Paroxetine
B) Fluvoxamine
C) Sertraline
D) Fluoxetine
Correct Answer: Fluoxetine
Rationale: Fluoxetine has a relatively long half-life compared with many other SSRIs, including
an active metabolite that persists for an extended period. This characteristic can reduce the
severity of discontinuation symptoms after missed doses. However, its long duration also means
adverse effects and drug interactions may persist after discontinuation.
5. Why should paroxetine generally be used cautiously in older adults?
A) It has substantial anticholinergic effects
B) It has no serotonergic activity
,C) It universally causes severe hypertension
D) It is ineffective for depressive symptoms
Correct Answer: It has substantial anticholinergic effects
Rationale: Paroxetine has more anticholinergic activity than many other SSRIs, which can
increase risks such as confusion, constipation, urinary retention, and cognitive impairment in
older adults. Older patients are particularly vulnerable to anticholinergic adverse effects.
Medication selection should therefore consider age, comorbidities, polypharmacy, and fall risk.
6. A patient taking citalopram has a history of prolonged QT interval. Which concern
should guide medication selection?
A) Increased risk of nephrotoxicity
B) Increased risk of cardiac arrhythmia
C) Increased risk of severe hypoglycemia
D) Increased risk of cholinergic crisis
Correct Answer: Increased risk of cardiac arrhythmia
Rationale: Citalopram can produce dose-dependent QT prolongation, creating concern for
potentially serious ventricular arrhythmias in susceptible individuals. Risk is especially
important in older adults and patients with cardiac disease or other QT-prolonging medications.
Appropriate dosing, medication review, and risk assessment are important before prescribing.
7. Which finding most strongly suggests serotonin syndrome in a patient taking
serotonergic medications?
A) Mild dry mouth alone
B) Increased appetite without behavioral changes
C) Hyperthermia, agitation, autonomic instability, and neuromuscular abnormalities
D) Isolated urinary frequency
Correct Answer: Hyperthermia, agitation, autonomic instability, and neuromuscular
abnormalities
Rationale: Serotonin syndrome results from excessive serotonergic activity and can present with
mental-status changes, autonomic instability, hyperthermia, and neuromuscular findings such as
clonus or hyperreflexia. Severe cases can become life-threatening. Recognition is important
because treatment requires stopping causative serotonergic agents and providing appropriate
supportive care.
, 8. Which medication class requires particular dietary and drug-interaction precautions
because of inhibition of monoamine oxidase?
A) SSRIs
B) SNRIs
C) MAOIs
D) NDRIs
Correct Answer: MAOIs
Rationale: Monoamine oxidase inhibitors interfere with the enzymatic breakdown of
monoamines and can interact dangerously with serotonergic medications and certain
sympathomimetic or tyramine-containing substances. These interactions can cause hypertensive
or serotonergic toxicity. Careful medication reconciliation and patient education are essential
when MAOIs are prescribed.
9. A patient taking an antidepressant develops severe agitation, sweating, diarrhea, tremor,
and clonus after another serotonergic medication is added. What complication should be
suspected?
A) Serotonin syndrome
B) Neuroleptic malignant syndrome
C) Anticholinergic toxicity
D) Lithium-induced nephropathy
Correct Answer: Serotonin syndrome
Rationale: The combination of autonomic symptoms, gastrointestinal effects, agitation, tremor,
and clonus strongly suggests serotonin toxicity. Serotonin syndrome can occur when multiple
serotonergic medications are combined. Prompt recognition and discontinuation of serotonergic
agents are important, with supportive management based on clinical severity.
10. Which antidepressant mechanism is associated with bupropion?
A) Serotonin reuptake inhibition only
B) Norepinephrine-dopamine reuptake inhibition
C) Irreversible monoamine oxidase inhibition
D) Direct NMDA receptor blockade
Correct Answer: Norepinephrine-dopamine reuptake inhibition
