NU 643 Final Exam V1 | NU 643 Advanced
Psychopharmacology | Actual Q&A with
Rationale (NU643 Final Exam) | Regis
University
1. A patient taking Lithium for Bipolar Disorder presents with coarse tremors, ataxia, and
confusion. What is the most likely interpretation?
A. The patient is experiencing common side effects of Lithium.
B. The patient is experiencing a depressive relapse.
C. The patient has developed Lithium toxicity.
D. The patient has Serotonin Syndrome.
Answer: C
Rationale: Coarse tremors and ataxia are hallmark signs of Lithium toxicity, which is a
medical emergency. Common side effects usually include fine hand tremors, not coarse
ones. Immediate serum lithium levels must be obtained to determine the severity of the
toxicity.
2. When prescribing Clozapine (Clozaril), which laboratory value is mandatory to monitor via
the REMS program?
A. Absolute Neutrophil Count (ANC)
B. Serum Creatinine
,C. Liver Function Tests (LFTs)
D. Hemoglobin A1C
Answer: A
Rationale: Clozapine is associated with a risk of severe neutropenia and agranulocytosis.
The REMS program requires regular Absolute Neutrophil Count (ANC) monitoring to
ensure patient safety. If the ANC falls below specific thresholds, the medication must be
discontinued or interrupted.
3. A patient is started on Lamotrigine (Lamictal) for mood stabilization. What is the most
critical education point regarding side effects?
A. Expect significant weight gain within the first month.
B. Report any new rash immediately to the provider.
C. Avoid foods high in tyramine like aged cheese.
D. Monitor for increased urinary frequency.
Answer: B
Rationale: Lamotrigine carries a Black Box Warning for Stevens-Johnson Syndrome (SJS), a
life-threatening skin reaction. Patients must be taught to identify and report any rash
immediately. Slow titration of the dosage is the standard protocol to minimize this risk.
, 4. Which mechanism of action is primarily responsible for the therapeutic effect of Selective
Serotonin Reuptake Inhibitors (SSRIs)?
A. Inhibition of the serotonin transporter (SERT)
B. Antagonism of dopamine D2 receptors
C. Agonism of GABA-A receptors
D. Blockade of voltage-gated sodium channels
Answer: A
Rationale: SSRIs work by inhibiting the serotonin transporter (SERT), which increases the
concentration of serotonin in the synaptic cleft. This leads to downstream neuroplastic
changes that alleviate symptoms of depression and anxiety. This mechanism is more
selective compared to older tricyclic antidepressants.
5. A patient on a Monoamine Oxidase Inhibitor (MAOI) consumes aged cheese and red wine.
What complication are they most at risk for?
A. Hypertensive crisis
B. Hypoglycemic crisis
C. Respiratory depression
D. Acute renal failure
Answer: A
Psychopharmacology | Actual Q&A with
Rationale (NU643 Final Exam) | Regis
University
1. A patient taking Lithium for Bipolar Disorder presents with coarse tremors, ataxia, and
confusion. What is the most likely interpretation?
A. The patient is experiencing common side effects of Lithium.
B. The patient is experiencing a depressive relapse.
C. The patient has developed Lithium toxicity.
D. The patient has Serotonin Syndrome.
Answer: C
Rationale: Coarse tremors and ataxia are hallmark signs of Lithium toxicity, which is a
medical emergency. Common side effects usually include fine hand tremors, not coarse
ones. Immediate serum lithium levels must be obtained to determine the severity of the
toxicity.
2. When prescribing Clozapine (Clozaril), which laboratory value is mandatory to monitor via
the REMS program?
A. Absolute Neutrophil Count (ANC)
B. Serum Creatinine
,C. Liver Function Tests (LFTs)
D. Hemoglobin A1C
Answer: A
Rationale: Clozapine is associated with a risk of severe neutropenia and agranulocytosis.
The REMS program requires regular Absolute Neutrophil Count (ANC) monitoring to
ensure patient safety. If the ANC falls below specific thresholds, the medication must be
discontinued or interrupted.
3. A patient is started on Lamotrigine (Lamictal) for mood stabilization. What is the most
critical education point regarding side effects?
A. Expect significant weight gain within the first month.
B. Report any new rash immediately to the provider.
C. Avoid foods high in tyramine like aged cheese.
D. Monitor for increased urinary frequency.
Answer: B
Rationale: Lamotrigine carries a Black Box Warning for Stevens-Johnson Syndrome (SJS), a
life-threatening skin reaction. Patients must be taught to identify and report any rash
immediately. Slow titration of the dosage is the standard protocol to minimize this risk.
, 4. Which mechanism of action is primarily responsible for the therapeutic effect of Selective
Serotonin Reuptake Inhibitors (SSRIs)?
A. Inhibition of the serotonin transporter (SERT)
B. Antagonism of dopamine D2 receptors
C. Agonism of GABA-A receptors
D. Blockade of voltage-gated sodium channels
Answer: A
Rationale: SSRIs work by inhibiting the serotonin transporter (SERT), which increases the
concentration of serotonin in the synaptic cleft. This leads to downstream neuroplastic
changes that alleviate symptoms of depression and anxiety. This mechanism is more
selective compared to older tricyclic antidepressants.
5. A patient on a Monoamine Oxidase Inhibitor (MAOI) consumes aged cheese and red wine.
What complication are they most at risk for?
A. Hypertensive crisis
B. Hypoglycemic crisis
C. Respiratory depression
D. Acute renal failure
Answer: A
