NUR 600 Exam 3: Advanced Clinical Pharmacology
- St. Thomas University Updated and Latest
Questions and Correct Answers with Rationale
1. A patient is prescribed phenytoin for the management of tonic-clonic seizures. Which side
effect should the nurse specifically educate the patient about regarding oral health?
A. Dental caries
B. Gingival hyperplasia
C. Oral candidiasis
D. Xerostomia
Correct Answer: B
Rationale: Phenytoin is an antiepileptic drug that requires close monitoring of therapeutic
levels. A primary side effect to discuss with patients is gingival hyperplasia, which involves
overgrowth of gum tissue. Proper oral hygiene and regular dental visits can help mitigate
this specific issue. It also has a narrow therapeutic range, typically between 10 and 20
mcg/mL. Healthcare providers must observe for signs of toxicity such as nystagmus or
ataxia.
2. A patient with bipolar disorder is taking Lithium. What is the most critical dietary
instruction the nurse should provide to prevent toxicity?
A. Maintain a consistent intake of sodium
B. Avoid foods high in Vitamin K
C. Limit potassium-rich foods
D. Increase intake of dairy products
Correct Answer: A
Rationale: Lithium is used as a mood stabilizer for patients with bipolar disorder. Patients
must maintain a consistent salt intake to avoid fluctuations in lithium levels. Low sodium
levels can lead to decreased lithium excretion, resulting in toxicity. Common symptoms of
toxicity include tremors, nausea, and confusion. Serum levels should be monitored
regularly to keep the patient within the therapeutic range of 0.6 to 1.2 mEq/L.
3. A patient complaining of a migraine headache is prescribed Sumatriptan. Which of the
following conditions in the patient’s history would be a contraindication for this drug?
A. Diabetes Mellitus
B. Asthma
C. Ischemic heart disease
,D. Hypothyroidism
Correct Answer: C
Rationale: Sumatriptan is a triptan used for the acute treatment of migraine attacks. It
works by causing vasoconstriction of the cranial blood vessels. Because it can also cause
coronary vasospasm, it is strictly contraindicated in patients with ischemic heart disease.
Patients with a history of myocardial infarction or uncontrolled hypertension should avoid
this class. Nurses must assess the patient’s cardiovascular risk profile before
administration.
4. When treating a patient with Parkinson’s disease, why is Carbidopa administered along
with Levodopa?
A. To cross the blood-brain barrier independently
B. To prevent the breakdown of Levodopa in the periphery
C. To act as a dopamine agonist directly
D. To increase the conversion of Levodopa in the periphery
Correct Answer: B
Rationale: Levodopa is the precursor to dopamine but is often metabolized before
reaching the brain. Carbidopa inhibits the enzyme dopa decarboxylase in the peripheral
tissues. This inhibition allows more Levodopa to cross the blood-brain barrier effectively.
Once in the brain, Levodopa is converted to active dopamine to alleviate motor symptoms.
This combination reduces the required dose of Levodopa and minimizes peripheral side
effects like nausea.
5. A patient has just started an SSRI for depression. What information regarding the onset of
therapeutic effects is most important to share?
A. Maximum benefit is usually seen in 3 days
B. The patient will feel better within 24 hours
C. The drug may take 4 to 6 weeks to reach full effect
D. Sleep will improve immediately, followed by mood in one week
Correct Answer: C
Rationale: Selective Serotonin Reuptake Inhibitors (SSRIs) are first-line treatments for
major depressive disorder. Patients often expect immediate relief, but pharmacological
effects take time to manifest. It generally takes several weeks of consistent dosing for
neurochemical changes to improve mood. Healthcare providers should monitor for
increased suicidal ideation during the initial phase of treatment. Educating the patient on
this delay helps manage expectations and improves medication adherence.
, 6. A patient is being switched to Clozapine for treatment-resistant schizophrenia. Which
laboratory test must be monitored weekly?
A. Absolute neutrophil count (ANC)
B. Liver function tests
C. Serum creatinine
D. Thyroid stimulating hormone
Correct Answer: A
Rationale: Clozapine is an atypical antipsychotic reserved for patients who do not respond
to other medications. It carries a significant risk of agranulocytosis, which is a severe
reduction in white blood cells. Consequently, the Absolute Neutrophil Count (ANC) must be
monitored regularly to ensure safety. If the ANC falls below a certain threshold, the
medication must be discontinued immediately. This monitoring is mandated by a national
registry to prevent life-threatening infections.
7. Which assessment finding is a priority for a nurse monitoring a patient who has just
received an intravenous dose of Morphine?
A. Nausea and vomiting
B. Constipation
C. Pupillary constriction
D. Respiratory rate of 8 breaths per minute
Correct Answer: D
Rationale: Morphine is a potent opioid analgesic used for severe pain management. The
most serious adverse effect of opioid administration is respiratory depression. A
respiratory rate of 8 breaths per minute indicates significant CNS depression and requires
immediate intervention. The nurse should be prepared to administer Naloxone if the
patient becomes unresponsive. Frequent monitoring of vital signs is essential during the
initial administration of IV opioids.
8. A patient is brought to the emergency department in status epilepticus. Which medication
is considered first-line for terminating the seizure?
A. Oral Carbamazepine
B. Intravenous Lorazepam
C. Sublingual Valproic Acid
D. Intramuscular Phenobarbital
Correct Answer: B
- St. Thomas University Updated and Latest
Questions and Correct Answers with Rationale
1. A patient is prescribed phenytoin for the management of tonic-clonic seizures. Which side
effect should the nurse specifically educate the patient about regarding oral health?
A. Dental caries
B. Gingival hyperplasia
C. Oral candidiasis
D. Xerostomia
Correct Answer: B
Rationale: Phenytoin is an antiepileptic drug that requires close monitoring of therapeutic
levels. A primary side effect to discuss with patients is gingival hyperplasia, which involves
overgrowth of gum tissue. Proper oral hygiene and regular dental visits can help mitigate
this specific issue. It also has a narrow therapeutic range, typically between 10 and 20
mcg/mL. Healthcare providers must observe for signs of toxicity such as nystagmus or
ataxia.
2. A patient with bipolar disorder is taking Lithium. What is the most critical dietary
instruction the nurse should provide to prevent toxicity?
A. Maintain a consistent intake of sodium
B. Avoid foods high in Vitamin K
C. Limit potassium-rich foods
D. Increase intake of dairy products
Correct Answer: A
Rationale: Lithium is used as a mood stabilizer for patients with bipolar disorder. Patients
must maintain a consistent salt intake to avoid fluctuations in lithium levels. Low sodium
levels can lead to decreased lithium excretion, resulting in toxicity. Common symptoms of
toxicity include tremors, nausea, and confusion. Serum levels should be monitored
regularly to keep the patient within the therapeutic range of 0.6 to 1.2 mEq/L.
3. A patient complaining of a migraine headache is prescribed Sumatriptan. Which of the
following conditions in the patient’s history would be a contraindication for this drug?
A. Diabetes Mellitus
B. Asthma
C. Ischemic heart disease
,D. Hypothyroidism
Correct Answer: C
Rationale: Sumatriptan is a triptan used for the acute treatment of migraine attacks. It
works by causing vasoconstriction of the cranial blood vessels. Because it can also cause
coronary vasospasm, it is strictly contraindicated in patients with ischemic heart disease.
Patients with a history of myocardial infarction or uncontrolled hypertension should avoid
this class. Nurses must assess the patient’s cardiovascular risk profile before
administration.
4. When treating a patient with Parkinson’s disease, why is Carbidopa administered along
with Levodopa?
A. To cross the blood-brain barrier independently
B. To prevent the breakdown of Levodopa in the periphery
C. To act as a dopamine agonist directly
D. To increase the conversion of Levodopa in the periphery
Correct Answer: B
Rationale: Levodopa is the precursor to dopamine but is often metabolized before
reaching the brain. Carbidopa inhibits the enzyme dopa decarboxylase in the peripheral
tissues. This inhibition allows more Levodopa to cross the blood-brain barrier effectively.
Once in the brain, Levodopa is converted to active dopamine to alleviate motor symptoms.
This combination reduces the required dose of Levodopa and minimizes peripheral side
effects like nausea.
5. A patient has just started an SSRI for depression. What information regarding the onset of
therapeutic effects is most important to share?
A. Maximum benefit is usually seen in 3 days
B. The patient will feel better within 24 hours
C. The drug may take 4 to 6 weeks to reach full effect
D. Sleep will improve immediately, followed by mood in one week
Correct Answer: C
Rationale: Selective Serotonin Reuptake Inhibitors (SSRIs) are first-line treatments for
major depressive disorder. Patients often expect immediate relief, but pharmacological
effects take time to manifest. It generally takes several weeks of consistent dosing for
neurochemical changes to improve mood. Healthcare providers should monitor for
increased suicidal ideation during the initial phase of treatment. Educating the patient on
this delay helps manage expectations and improves medication adherence.
, 6. A patient is being switched to Clozapine for treatment-resistant schizophrenia. Which
laboratory test must be monitored weekly?
A. Absolute neutrophil count (ANC)
B. Liver function tests
C. Serum creatinine
D. Thyroid stimulating hormone
Correct Answer: A
Rationale: Clozapine is an atypical antipsychotic reserved for patients who do not respond
to other medications. It carries a significant risk of agranulocytosis, which is a severe
reduction in white blood cells. Consequently, the Absolute Neutrophil Count (ANC) must be
monitored regularly to ensure safety. If the ANC falls below a certain threshold, the
medication must be discontinued immediately. This monitoring is mandated by a national
registry to prevent life-threatening infections.
7. Which assessment finding is a priority for a nurse monitoring a patient who has just
received an intravenous dose of Morphine?
A. Nausea and vomiting
B. Constipation
C. Pupillary constriction
D. Respiratory rate of 8 breaths per minute
Correct Answer: D
Rationale: Morphine is a potent opioid analgesic used for severe pain management. The
most serious adverse effect of opioid administration is respiratory depression. A
respiratory rate of 8 breaths per minute indicates significant CNS depression and requires
immediate intervention. The nurse should be prepared to administer Naloxone if the
patient becomes unresponsive. Frequent monitoring of vital signs is essential during the
initial administration of IV opioids.
8. A patient is brought to the emergency department in status epilepticus. Which medication
is considered first-line for terminating the seizure?
A. Oral Carbamazepine
B. Intravenous Lorazepam
C. Sublingual Valproic Acid
D. Intramuscular Phenobarbital
Correct Answer: B
