NR566 / NR 566 Final Exam: Advanced Pharmacology for
Care of the Family – Chamberlain Actual Exam Complete
Questions & Rationales | Family Pharmacotherapeutics |
Pass Guaranteed - A+ Graded
Foundations of Advanced Pharmacology & Special Populations
Q1: A 78-year-old man with heart failure is started on a new medication. His provider
notes that due to normal age-related changes, the drug may reach higher plasma
concentrations than expected in a younger adult. Which pharmacokinetic change best
explains this finding?
A. Increased gastric acid secretion
B. Decreased lean body mass and total body water [CORRECT]
C. Increased hepatic blood flow
D. Enhanced renal tubular secretion
Correct Answer: B
Rationale: The best answer is B. In older adults, decreased lean body mass and total
body water reduce the volume of distribution for water-soluble drugs, leading to higher
plasma concentrations. Remember to adjust for these age-related changes when
prescribing for elderly patients.
Q2: A patient taking warfarin requires a lower-than-expected dose to maintain
therapeutic INR. Genetic testing reveals a reduced-function allele affecting drug
metabolism. Which cytochrome P450 enzyme is most likely involved?
A. CYP3A4
B. CYP2D6
C. CYP2C9 [CORRECT]
D. CYP1A2
Correct Answer: C
,Rationale: The best answer is C. Warfarin is metabolized primarily by CYP2C9, and
reduced-function variants can lead to increased drug levels and bleeding risk. That
aligns with why pharmacogenomic testing is increasingly used to guide warfarin dosing.
Q3: A 32-year-old woman in her first trimester presents with nausea. Her friend
recommended ondansetron, but the patient is concerned about safety. Which statement
best guides prescribing in pregnancy?
A. All antiemetics are contraindicated in the first trimester
B. Pyridoxine (vitamin B6) with or without doxylamine is first-line for pregnancy-related
nausea [CORRECT]
C. Ondansetron is FDA Category A and preferred in early pregnancy
D. Metoclopramide should be avoided due to known teratogenicity
Correct Answer: B
Rationale: The best answer is B. Pyridoxine with doxylamine is the recommended
first-line treatment for nausea and vomiting in pregnancy due to established safety data.
Ondansetron may be used but is not first-line in the first trimester, and metoclopramide
is actually considered relatively safe.
Q4: A breastfeeding mother asks if she can continue taking sertraline for her
depression. Which guidance is most appropriate?
A. All antidepressants are contraindicated during lactation
B. Sertraline is generally considered compatible with breastfeeding due to low infant
exposure [CORRECT]
C. She must switch to fluoxetine immediately
D. Breastfeeding should be discontinued while on any psychiatric medication
Correct Answer: B
Rationale: The best answer is B. Sertraline has low transfer into breast milk and is often
preferred for breastfeeding mothers with depression. Remember to consider both
maternal mental health and infant safety when prescribing for lactating women.
Q5: A 4-year-old child weighs 18 kg and requires amoxicillin for acute otitis media. The
standard pediatric dose is 80-90 mg/kg/day divided twice daily. Which total daily dose
falls within this range?
A. 450 mg/day
B. 900 mg/day
, C. 1,500 mg/day [CORRECT]
D. 2,400 mg/day
Correct Answer: C
Rationale: The best answer is C. For an 18 kg child, 80-90 mg/kg/day equals 1,440-1,620
mg/day. Remember to always calculate pediatric doses based on weight and verify the
maximum adult dose is not exceeded.
Q6: A 68-year-old with chronic kidney disease (CrCl 28 mL/min) is prescribed
levofloxacin for a respiratory infection. Which principle best guides dosing in this
patient?
A. No dose adjustment is needed for fluoroquinolones
B. The dose should be reduced or the interval extended due to renal elimination
[CORRECT]
C. Increase the dose to compensate for reduced absorption
D. Switch to a hepatically cleared antibiotic only
Correct Answer: B
Rationale: The best answer is B. Levofloxacin is primarily renally eliminated, and dose
reduction or extended intervals are necessary in CKD to prevent toxicity. Remember to
adjust for renal function in older adults and those with chronic kidney disease.
Q7: Which medication is classified as potentially inappropriate in older adults according
to the Beers Criteria due to high anticholinergic properties and risk of cognitive
impairment?
A. Loratadine
B. Diphenhydramine [CORRECT]
C. Cetirizine
D. Fexofenadine
Correct Answer: B
Rationale: The best answer is B. Diphenhydramine is a first-generation antihistamine
with significant anticholinergic effects that can worsen cognition and increase fall risk
in older adults. That aligns with the Beers criteria recommendation to avoid these
agents in the elderly.
Q8: A patient with cirrhosis requires pain management. Which medication should be
used with caution or avoided due to altered hepatic metabolism and risk of toxicity?
Care of the Family – Chamberlain Actual Exam Complete
Questions & Rationales | Family Pharmacotherapeutics |
Pass Guaranteed - A+ Graded
Foundations of Advanced Pharmacology & Special Populations
Q1: A 78-year-old man with heart failure is started on a new medication. His provider
notes that due to normal age-related changes, the drug may reach higher plasma
concentrations than expected in a younger adult. Which pharmacokinetic change best
explains this finding?
A. Increased gastric acid secretion
B. Decreased lean body mass and total body water [CORRECT]
C. Increased hepatic blood flow
D. Enhanced renal tubular secretion
Correct Answer: B
Rationale: The best answer is B. In older adults, decreased lean body mass and total
body water reduce the volume of distribution for water-soluble drugs, leading to higher
plasma concentrations. Remember to adjust for these age-related changes when
prescribing for elderly patients.
Q2: A patient taking warfarin requires a lower-than-expected dose to maintain
therapeutic INR. Genetic testing reveals a reduced-function allele affecting drug
metabolism. Which cytochrome P450 enzyme is most likely involved?
A. CYP3A4
B. CYP2D6
C. CYP2C9 [CORRECT]
D. CYP1A2
Correct Answer: C
,Rationale: The best answer is C. Warfarin is metabolized primarily by CYP2C9, and
reduced-function variants can lead to increased drug levels and bleeding risk. That
aligns with why pharmacogenomic testing is increasingly used to guide warfarin dosing.
Q3: A 32-year-old woman in her first trimester presents with nausea. Her friend
recommended ondansetron, but the patient is concerned about safety. Which statement
best guides prescribing in pregnancy?
A. All antiemetics are contraindicated in the first trimester
B. Pyridoxine (vitamin B6) with or without doxylamine is first-line for pregnancy-related
nausea [CORRECT]
C. Ondansetron is FDA Category A and preferred in early pregnancy
D. Metoclopramide should be avoided due to known teratogenicity
Correct Answer: B
Rationale: The best answer is B. Pyridoxine with doxylamine is the recommended
first-line treatment for nausea and vomiting in pregnancy due to established safety data.
Ondansetron may be used but is not first-line in the first trimester, and metoclopramide
is actually considered relatively safe.
Q4: A breastfeeding mother asks if she can continue taking sertraline for her
depression. Which guidance is most appropriate?
A. All antidepressants are contraindicated during lactation
B. Sertraline is generally considered compatible with breastfeeding due to low infant
exposure [CORRECT]
C. She must switch to fluoxetine immediately
D. Breastfeeding should be discontinued while on any psychiatric medication
Correct Answer: B
Rationale: The best answer is B. Sertraline has low transfer into breast milk and is often
preferred for breastfeeding mothers with depression. Remember to consider both
maternal mental health and infant safety when prescribing for lactating women.
Q5: A 4-year-old child weighs 18 kg and requires amoxicillin for acute otitis media. The
standard pediatric dose is 80-90 mg/kg/day divided twice daily. Which total daily dose
falls within this range?
A. 450 mg/day
B. 900 mg/day
, C. 1,500 mg/day [CORRECT]
D. 2,400 mg/day
Correct Answer: C
Rationale: The best answer is C. For an 18 kg child, 80-90 mg/kg/day equals 1,440-1,620
mg/day. Remember to always calculate pediatric doses based on weight and verify the
maximum adult dose is not exceeded.
Q6: A 68-year-old with chronic kidney disease (CrCl 28 mL/min) is prescribed
levofloxacin for a respiratory infection. Which principle best guides dosing in this
patient?
A. No dose adjustment is needed for fluoroquinolones
B. The dose should be reduced or the interval extended due to renal elimination
[CORRECT]
C. Increase the dose to compensate for reduced absorption
D. Switch to a hepatically cleared antibiotic only
Correct Answer: B
Rationale: The best answer is B. Levofloxacin is primarily renally eliminated, and dose
reduction or extended intervals are necessary in CKD to prevent toxicity. Remember to
adjust for renal function in older adults and those with chronic kidney disease.
Q7: Which medication is classified as potentially inappropriate in older adults according
to the Beers Criteria due to high anticholinergic properties and risk of cognitive
impairment?
A. Loratadine
B. Diphenhydramine [CORRECT]
C. Cetirizine
D. Fexofenadine
Correct Answer: B
Rationale: The best answer is B. Diphenhydramine is a first-generation antihistamine
with significant anticholinergic effects that can worsen cognition and increase fall risk
in older adults. That aligns with the Beers criteria recommendation to avoid these
agents in the elderly.
Q8: A patient with cirrhosis requires pain management. Which medication should be
used with caution or avoided due to altered hepatic metabolism and risk of toxicity?
