NR 566 / NR566 Advanced Pharmacology Care of the Family Midterm Review| LATEST 2026/2027 | Chamberlain College 2026/2027 2026/2027 | Page 1 | Passing Score: 80%
CHAMBERLAIN COLLEGE
NR 566 / NR566 Advanced Pharmacology Care of the
Family
Midterm Review| LATEST 2026/2027 | Chamberlain College
2026/2027
ADVANCED PHARMACOLOGY · Official Exam 2026/2027
100 80% CERTIFIED
QUESTIONS PASSING SCORE RECERTIFICATION
TABLE OF CONTENTS
Section 1 Pharmacokinetics and Pharmacodynamics Q1-20
Section 2 Central Nervous System Pharmacology Q21-40
Section 3 Cardiovascular and Renal Pharmacology Q41-60
Section 4 Endocrine and Respiratory Pharmacology Q61-80
Section 5 Anti-Infective and Immunologic Pharmacology Q81-100
Instructions: Select the single best answer for each question. This exam is designed for NR566 Advanced Pharmacology
Care of the Family midterm review preparation. Passing score: 80% (80 questions correct).
NR 566 / NR566 Advanced Pharmacology Care of the Family Midterm Review| LATEST 2026/2027 | Chamberlain College 2026/2027 - 2026/2027 | Passing Score: 80% | Page 1 of 50
, SECTION 1 | PHARMACOKINETICS AND PHARMACODYNAMICS | Q1-Q20 | NR 566 / NR566 Advanced Pharmacology Care of the Family
Midterm Review| LATEST 2026/2027 | Chamberlain College 2026/2027 2026/2027
Q1 Question 1 of 100
A 42-year-old woman with epilepsy has been taking phenytoin 300 mg daily for 6 months and her
seizures are well controlled. She is diagnosed with a urinary tract infection and prescribed
ciprofloxacin 500 mg twice daily. The nurse practitioner understands that ciprofloxacin inhibits
CYP1A2 and CYP3A4, which may alter phenytoin metabolism. What is the most appropriate action
regarding her phenytoin therapy?
A. Switch phenytoin to another antiepileptic drug
B. Decrease the phenytoin dose immediately to prevent toxicity
C. No change is needed because phenytoin is metabolized primarily by CYP2C9 and CYP2C19
D. Increase the phenytoin dose to overcome enzyme inhibition
Correct Answer: C
Rationale:
Phenytoin is primarily metabolized by CYP2C9 and CYP2C19, not by CYP1A2 or CYP3A4. Ciprofloxacin's
inhibition of CYP1A2 and CYP3A4 would not significantly affect phenytoin metabolism. Decreasing the
dose could lead to breakthrough seizures, and switching drugs is unnecessary.
Q2 Question 2 of 100
A 68-year-old man with heart failure is started on oral furosemide 40 mg daily. After three days, his
peripheral edema has improved but his serum potassium is 3.1 mEq/L. The medication's half-life is
approximately 2 hours, yet the electrolyte abnormality persists. This is best explained by which
pharmacokinetic principle?
A. First-pass metabolism reduces drug availability to renal tubules
B. Drug accumulation occurs because of reduced hepatic clearance
C. The pharmacodynamic effect on potassium excretion outlasts the drug's plasma presence
D. Volume of distribution increases with heart failure, prolonging the effect
Correct Answer: C
Rationale:
Furosemide's diuretic effect on the loop of Henle increases potassium excretion, and this
pharmacodynamic consequence persists beyond the drug's short plasma half-life. The electrolyte depletion
reflects the cumulative effect of ongoing urinary potassium losses, not prolonged drug presence in the
body.
NR 566 / NR566 Advanced Pharmacology Care of the Family Midterm Review| LATEST 2026/2027 | Chamberlain College 2026/2027 - 2026/2027 | Passing Score: 80% | Page 2 of 50
, Q3 Question 3 of 100
A 35-year-old woman taking oral contraceptive pills is prescribed rifampin for a tuberculosis exposure.
The nurse practitioner recognizes that rifampin is a potent CYP inducer. Which counseling point is
most critical for this patient?
A. Take both medications with food to enhance absorption
B. Switch from oral contraceptives to a progestin-only pill
C. Use a backup contraceptive method because rifampin reduces estrogen effectiveness
D. Stop the oral contraceptives entirely during rifampin therapy
Correct Answer: C
Rationale:
Rifampin induces CYP3A4, significantly accelerating the metabolism of estrogen in combined oral
contraceptives and reducing their effectiveness. A backup contraceptive method is essential. Stopping oral
contraceptives entirely is unnecessary, and progestin-only pills are also affected by CYP3A4 induction.
Q4 Question 4 of 100
A 55-year-old man with type 2 diabetes is prescribed metformin 500 mg twice daily. His creatinine
clearance is calculated at 45 mL/min. Based on the drug's pharmacokinetic profile, what is the most
appropriate adjustment?
A. Increase the dose to 1000 mg twice daily for better glycemic control
B. Continue the current dose without modification
C. Discontinue metformin entirely
D. Reduce the dose to 500 mg once daily
Correct Answer: D
Rationale:
Metformin is renally cleared, and when creatinine clearance falls between 30-45 mL/min, the FDA
recommends reducing the maximum daily dose to 1000 mg (500 mg twice daily or equivalent). Continuing
the full dose increases lactic acidosis risk, while discontinuation removes a valuable first-line agent.
Q5 Question 5 of 100
A 28-year-old woman with bipolar disorder is started on lithium 300 mg three times daily. After one
week, her serum lithium level is 0.3 mEq/L, which is below the therapeutic range of 0.6-1.2 mEq/L.
She reports adhering to her dosing schedule. Which pharmacokinetic factor most likely explains the
subtherapeutic level?
A. Rapid first-pass metabolism in the liver reduces bioavailability
B. Lithium has a narrow therapeutic index requiring careful titration
C. High sodium intake increases renal lithium excretion
D. Extensive plasma protein binding reduces free drug availability
Correct Answer: C
Rationale:
Lithium is handled by the kidneys similarly to sodium. High dietary sodium intake increases lithium
excretion, lowering serum levels. Lithium does not undergo hepatic metabolism or significant protein
binding. The narrow therapeutic index is a pharmacodynamic property, not an explanation for low levels in
NR 566 / NR566 Advanced Pharmacology Care of the Family Midterm Review| LATEST 2026/2027 | Chamberlain College 2026/2027 - 2026/2027 | Passing Score: 80% | Page 3 of 50
an adherent patient.
, Q6 Question 6 of 100
A 60-year-old man with atrial fibrillation is prescribed warfarin 5 mg daily. After starting amiodarone for
rate control, his INR rises to 4.2 within one week. The mechanism underlying this drug interaction
involves which pharmacokinetic process?
A. Amiodarone displaces warfarin from plasma proteins, increasing free warfarin
B. Amiodarone reduces vitamin K synthesis in the liver synergistically
C. Amiodarone enhances warfarin absorption in the gastrointestinal tract
D. Amiodarone inhibits CYP2C9, reducing warfarin clearance
Correct Answer: D
Rationale:
Amiodarone is a potent CYP2C9 inhibitor, and warfarin (particularly the more active S-enantiomer) is
metabolized by CYP2C9. Inhibition of this enzyme reduces warfarin clearance, leading to elevated INR.
While amiodarone also displaces protein-bound warfarin, this effect is transient; the sustained interaction is
primarily metabolic.
Q7 Question 7 of 100
A 44-year-old woman receives intravenous vancomycin 1 gram every 12 hours for a
methicillin-resistant Staphylococcus aureus bacteremia. Therapeutic drug monitoring shows a trough
of 8 mcg/mL, below the target of 15-20 mcg/mL. Which pharmacokinetic parameter should be
adjusted to achieve the target trough?
A. Increase the dose to raise the peak concentration
B. Switch to oral vancomycin for better gastrointestinal absorption
C. Decrease the dosing interval to increase accumulation
D. Add another antibiotic to reduce the volume of distribution
Correct Answer: C
Rationale:
Vancomycin trough levels reflect drug accumulation at steady state. When the trough is below target,
decreasing the dosing interval (e.g., from every 12 hours to every 8 hours) increases drug accumulation.
Simply increasing the dose raises the peak but may not sustain the trough. Oral vancomycin has negligible
systemic absorption.
NR 566 / NR566 Advanced Pharmacology Care of the Family Midterm Review| LATEST 2026/2027 | Chamberlain College 2026/2027 - 2026/2027 | Passing Score: 80% | Page 4 of 50
CHAMBERLAIN COLLEGE
NR 566 / NR566 Advanced Pharmacology Care of the
Family
Midterm Review| LATEST 2026/2027 | Chamberlain College
2026/2027
ADVANCED PHARMACOLOGY · Official Exam 2026/2027
100 80% CERTIFIED
QUESTIONS PASSING SCORE RECERTIFICATION
TABLE OF CONTENTS
Section 1 Pharmacokinetics and Pharmacodynamics Q1-20
Section 2 Central Nervous System Pharmacology Q21-40
Section 3 Cardiovascular and Renal Pharmacology Q41-60
Section 4 Endocrine and Respiratory Pharmacology Q61-80
Section 5 Anti-Infective and Immunologic Pharmacology Q81-100
Instructions: Select the single best answer for each question. This exam is designed for NR566 Advanced Pharmacology
Care of the Family midterm review preparation. Passing score: 80% (80 questions correct).
NR 566 / NR566 Advanced Pharmacology Care of the Family Midterm Review| LATEST 2026/2027 | Chamberlain College 2026/2027 - 2026/2027 | Passing Score: 80% | Page 1 of 50
, SECTION 1 | PHARMACOKINETICS AND PHARMACODYNAMICS | Q1-Q20 | NR 566 / NR566 Advanced Pharmacology Care of the Family
Midterm Review| LATEST 2026/2027 | Chamberlain College 2026/2027 2026/2027
Q1 Question 1 of 100
A 42-year-old woman with epilepsy has been taking phenytoin 300 mg daily for 6 months and her
seizures are well controlled. She is diagnosed with a urinary tract infection and prescribed
ciprofloxacin 500 mg twice daily. The nurse practitioner understands that ciprofloxacin inhibits
CYP1A2 and CYP3A4, which may alter phenytoin metabolism. What is the most appropriate action
regarding her phenytoin therapy?
A. Switch phenytoin to another antiepileptic drug
B. Decrease the phenytoin dose immediately to prevent toxicity
C. No change is needed because phenytoin is metabolized primarily by CYP2C9 and CYP2C19
D. Increase the phenytoin dose to overcome enzyme inhibition
Correct Answer: C
Rationale:
Phenytoin is primarily metabolized by CYP2C9 and CYP2C19, not by CYP1A2 or CYP3A4. Ciprofloxacin's
inhibition of CYP1A2 and CYP3A4 would not significantly affect phenytoin metabolism. Decreasing the
dose could lead to breakthrough seizures, and switching drugs is unnecessary.
Q2 Question 2 of 100
A 68-year-old man with heart failure is started on oral furosemide 40 mg daily. After three days, his
peripheral edema has improved but his serum potassium is 3.1 mEq/L. The medication's half-life is
approximately 2 hours, yet the electrolyte abnormality persists. This is best explained by which
pharmacokinetic principle?
A. First-pass metabolism reduces drug availability to renal tubules
B. Drug accumulation occurs because of reduced hepatic clearance
C. The pharmacodynamic effect on potassium excretion outlasts the drug's plasma presence
D. Volume of distribution increases with heart failure, prolonging the effect
Correct Answer: C
Rationale:
Furosemide's diuretic effect on the loop of Henle increases potassium excretion, and this
pharmacodynamic consequence persists beyond the drug's short plasma half-life. The electrolyte depletion
reflects the cumulative effect of ongoing urinary potassium losses, not prolonged drug presence in the
body.
NR 566 / NR566 Advanced Pharmacology Care of the Family Midterm Review| LATEST 2026/2027 | Chamberlain College 2026/2027 - 2026/2027 | Passing Score: 80% | Page 2 of 50
, Q3 Question 3 of 100
A 35-year-old woman taking oral contraceptive pills is prescribed rifampin for a tuberculosis exposure.
The nurse practitioner recognizes that rifampin is a potent CYP inducer. Which counseling point is
most critical for this patient?
A. Take both medications with food to enhance absorption
B. Switch from oral contraceptives to a progestin-only pill
C. Use a backup contraceptive method because rifampin reduces estrogen effectiveness
D. Stop the oral contraceptives entirely during rifampin therapy
Correct Answer: C
Rationale:
Rifampin induces CYP3A4, significantly accelerating the metabolism of estrogen in combined oral
contraceptives and reducing their effectiveness. A backup contraceptive method is essential. Stopping oral
contraceptives entirely is unnecessary, and progestin-only pills are also affected by CYP3A4 induction.
Q4 Question 4 of 100
A 55-year-old man with type 2 diabetes is prescribed metformin 500 mg twice daily. His creatinine
clearance is calculated at 45 mL/min. Based on the drug's pharmacokinetic profile, what is the most
appropriate adjustment?
A. Increase the dose to 1000 mg twice daily for better glycemic control
B. Continue the current dose without modification
C. Discontinue metformin entirely
D. Reduce the dose to 500 mg once daily
Correct Answer: D
Rationale:
Metformin is renally cleared, and when creatinine clearance falls between 30-45 mL/min, the FDA
recommends reducing the maximum daily dose to 1000 mg (500 mg twice daily or equivalent). Continuing
the full dose increases lactic acidosis risk, while discontinuation removes a valuable first-line agent.
Q5 Question 5 of 100
A 28-year-old woman with bipolar disorder is started on lithium 300 mg three times daily. After one
week, her serum lithium level is 0.3 mEq/L, which is below the therapeutic range of 0.6-1.2 mEq/L.
She reports adhering to her dosing schedule. Which pharmacokinetic factor most likely explains the
subtherapeutic level?
A. Rapid first-pass metabolism in the liver reduces bioavailability
B. Lithium has a narrow therapeutic index requiring careful titration
C. High sodium intake increases renal lithium excretion
D. Extensive plasma protein binding reduces free drug availability
Correct Answer: C
Rationale:
Lithium is handled by the kidneys similarly to sodium. High dietary sodium intake increases lithium
excretion, lowering serum levels. Lithium does not undergo hepatic metabolism or significant protein
binding. The narrow therapeutic index is a pharmacodynamic property, not an explanation for low levels in
NR 566 / NR566 Advanced Pharmacology Care of the Family Midterm Review| LATEST 2026/2027 | Chamberlain College 2026/2027 - 2026/2027 | Passing Score: 80% | Page 3 of 50
an adherent patient.
, Q6 Question 6 of 100
A 60-year-old man with atrial fibrillation is prescribed warfarin 5 mg daily. After starting amiodarone for
rate control, his INR rises to 4.2 within one week. The mechanism underlying this drug interaction
involves which pharmacokinetic process?
A. Amiodarone displaces warfarin from plasma proteins, increasing free warfarin
B. Amiodarone reduces vitamin K synthesis in the liver synergistically
C. Amiodarone enhances warfarin absorption in the gastrointestinal tract
D. Amiodarone inhibits CYP2C9, reducing warfarin clearance
Correct Answer: D
Rationale:
Amiodarone is a potent CYP2C9 inhibitor, and warfarin (particularly the more active S-enantiomer) is
metabolized by CYP2C9. Inhibition of this enzyme reduces warfarin clearance, leading to elevated INR.
While amiodarone also displaces protein-bound warfarin, this effect is transient; the sustained interaction is
primarily metabolic.
Q7 Question 7 of 100
A 44-year-old woman receives intravenous vancomycin 1 gram every 12 hours for a
methicillin-resistant Staphylococcus aureus bacteremia. Therapeutic drug monitoring shows a trough
of 8 mcg/mL, below the target of 15-20 mcg/mL. Which pharmacokinetic parameter should be
adjusted to achieve the target trough?
A. Increase the dose to raise the peak concentration
B. Switch to oral vancomycin for better gastrointestinal absorption
C. Decrease the dosing interval to increase accumulation
D. Add another antibiotic to reduce the volume of distribution
Correct Answer: C
Rationale:
Vancomycin trough levels reflect drug accumulation at steady state. When the trough is below target,
decreasing the dosing interval (e.g., from every 12 hours to every 8 hours) increases drug accumulation.
Simply increasing the dose raises the peak but may not sustain the trough. Oral vancomycin has negligible
systemic absorption.
NR 566 / NR566 Advanced Pharmacology Care of the Family Midterm Review| LATEST 2026/2027 | Chamberlain College 2026/2027 - 2026/2027 | Passing Score: 80% | Page 4 of 50
