NURS 6521 ADVANCED PHARMACOLOGY FINAL
EXAM 3 — STUDY GUIDE | LATEST UPDATE 2026/2027
| ACTUAL EXAM | PRACTICE QUESTIONS AND
ANSWERS | EXAM REVIEW | 100% CORRECT
ANSWERS | VERIFIED SOLUTIONS
Course/Program: NURS 6521 Advanced Pharmacology
Field of Study: Advanced Nursing Practice, Pharmacology, Pharmacotherapeutics,
Prescribing
Level: Graduate, Nurse Practitioner, Advanced Practice Nursing
Edition: 2026–2027
Table of Contents
1. Pharmacokinetics and Pharmacodynamics
2. Autonomic Nervous System Pharmacology
3. Cardiovascular Pharmacology
4. Renal and Fluid/Electrolyte Pharmacology
5. Endocrine Pharmacology
6. Antimicrobial Pharmacology
7. Central Nervous System Pharmacology
8. Pain Management and Anti-Inflammatory Pharmacology
9. Immunopharmacology and Biologics
10.Special Populations and Drug Interactions
1. Pharmacokinetics and Pharmacodynamics
2.
,A patient with hepatic cirrhosis is prescribed a drug with a high first-pass effect.
How should the nurse expect the drug's bioavailability to be affected?
A) Decreased due to increased liver metabolism
B) Increased due to reduced hepatic metabolism
C) Unchanged because hepatic function does not affect bioavailability
D) Decreased due to increased renal clearance
Correct Answer: B
Hepatic cirrhosis reduces the liver's metabolic capacity, decreasing first-pass
metabolism and increasing oral bioavailability of drugs with high hepatic
extraction. This increases the risk of toxicity and requires dose adjustment.
Options A, C, and D are incorrect.
2.
Which of the following drugs is most likely to have an increased volume of
distribution in an older adult due to changes in body composition?
A) Gentamicin
B) Lithium
C) Diazepam
D) Vancomycin
Correct Answer: C
Diazepam is lipophilic and distributes extensively into adipose tissue. Older adults
have increased body fat and decreased lean body mass, increasing diazepam's
volume of distribution and prolonging its half-life. Gentamicin, lithium, and
vancomycin are hydrophilic and distribute in body water.
3.
A patient is started on a drug that is a substrate of CYP3A4. The patient is also
taking grapefruit juice daily. What is the expected effect?
A) Decreased drug concentration due to enzyme induction
B) Increased drug concentration due to enzyme inhibition
C) No change in drug concentration
D) Increased renal clearance of the drug
,Correct Answer: B
Grapefruit juice inhibits intestinal CYP3A4, reducing first-pass metabolism and
increasing serum concentrations of CYP3A4 substrates. This can lead to toxicity.
The nurse should advise avoiding grapefruit juice.
4.
A drug that binds to a receptor and produces a full maximal response is classified
as:
A) Partial agonist
B) Antagonist
C) Full agonist
D) Inverse agonist
Correct Answer: C
A full agonist binds to a receptor and produces the maximum possible response. A
partial agonist produces less than maximal response even at full occupancy. An
antagonist blocks receptor activation; an inverse agonist produces the opposite
effect.
5.
Approximately how many half-lives are required for a drug to reach steady state
when administered at regular intervals?
A) 1–2 half-lives
B) 2–3 half-lives
C) 4–5 half-lives
D) 6–7 half-lives
Correct Answer: C
Steady state is generally achieved after approximately 4–5 half-lives of regular
dosing. This is independent of dose size and frequency. Options A, B, and D are
incorrect.
6.
, Which of the following is an example of a prodrug that requires hepatic activation
to become effective?
A) Lisinopril
B) Clopidogrel
C) Furosemide
D) Metformin
Correct Answer: B
Clopidogrel is a prodrug that requires CYP2C19-mediated hepatic activation to its
active metabolite. Lisinopril, furosemide, and metformin are active drugs, not
prodrugs. Poor metabolizers may have reduced clopidogrel efficacy.
7.
A patient with end-stage renal disease is prescribed a drug that is primarily
eliminated unchanged in the urine. What is the most appropriate dosing
adjustment?
A) Increase the dose
B) Decrease the dose or extend the dosing interval
C) No adjustment needed
D) Administer the drug more frequently
Correct Answer: B
Drugs primarily eliminated unchanged by the kidneys require dose reduction or
extended dosing intervals in renal impairment to prevent accumulation and
toxicity. Increasing dose or frequency is unsafe; no adjustment would cause
toxicity.
8.
Which of the following describes the mechanism of competitive antagonism?
A) The antagonist binds to the same receptor site and can be overcome by
increasing agonist concentration
B) The antagonist binds irreversibly to the receptor and cannot be overcome
C) The antagonist activates the receptor but produces the opposite effect
D) The antagonist binds to a different site and enhances agonist effects
EXAM 3 — STUDY GUIDE | LATEST UPDATE 2026/2027
| ACTUAL EXAM | PRACTICE QUESTIONS AND
ANSWERS | EXAM REVIEW | 100% CORRECT
ANSWERS | VERIFIED SOLUTIONS
Course/Program: NURS 6521 Advanced Pharmacology
Field of Study: Advanced Nursing Practice, Pharmacology, Pharmacotherapeutics,
Prescribing
Level: Graduate, Nurse Practitioner, Advanced Practice Nursing
Edition: 2026–2027
Table of Contents
1. Pharmacokinetics and Pharmacodynamics
2. Autonomic Nervous System Pharmacology
3. Cardiovascular Pharmacology
4. Renal and Fluid/Electrolyte Pharmacology
5. Endocrine Pharmacology
6. Antimicrobial Pharmacology
7. Central Nervous System Pharmacology
8. Pain Management and Anti-Inflammatory Pharmacology
9. Immunopharmacology and Biologics
10.Special Populations and Drug Interactions
1. Pharmacokinetics and Pharmacodynamics
2.
,A patient with hepatic cirrhosis is prescribed a drug with a high first-pass effect.
How should the nurse expect the drug's bioavailability to be affected?
A) Decreased due to increased liver metabolism
B) Increased due to reduced hepatic metabolism
C) Unchanged because hepatic function does not affect bioavailability
D) Decreased due to increased renal clearance
Correct Answer: B
Hepatic cirrhosis reduces the liver's metabolic capacity, decreasing first-pass
metabolism and increasing oral bioavailability of drugs with high hepatic
extraction. This increases the risk of toxicity and requires dose adjustment.
Options A, C, and D are incorrect.
2.
Which of the following drugs is most likely to have an increased volume of
distribution in an older adult due to changes in body composition?
A) Gentamicin
B) Lithium
C) Diazepam
D) Vancomycin
Correct Answer: C
Diazepam is lipophilic and distributes extensively into adipose tissue. Older adults
have increased body fat and decreased lean body mass, increasing diazepam's
volume of distribution and prolonging its half-life. Gentamicin, lithium, and
vancomycin are hydrophilic and distribute in body water.
3.
A patient is started on a drug that is a substrate of CYP3A4. The patient is also
taking grapefruit juice daily. What is the expected effect?
A) Decreased drug concentration due to enzyme induction
B) Increased drug concentration due to enzyme inhibition
C) No change in drug concentration
D) Increased renal clearance of the drug
,Correct Answer: B
Grapefruit juice inhibits intestinal CYP3A4, reducing first-pass metabolism and
increasing serum concentrations of CYP3A4 substrates. This can lead to toxicity.
The nurse should advise avoiding grapefruit juice.
4.
A drug that binds to a receptor and produces a full maximal response is classified
as:
A) Partial agonist
B) Antagonist
C) Full agonist
D) Inverse agonist
Correct Answer: C
A full agonist binds to a receptor and produces the maximum possible response. A
partial agonist produces less than maximal response even at full occupancy. An
antagonist blocks receptor activation; an inverse agonist produces the opposite
effect.
5.
Approximately how many half-lives are required for a drug to reach steady state
when administered at regular intervals?
A) 1–2 half-lives
B) 2–3 half-lives
C) 4–5 half-lives
D) 6–7 half-lives
Correct Answer: C
Steady state is generally achieved after approximately 4–5 half-lives of regular
dosing. This is independent of dose size and frequency. Options A, B, and D are
incorrect.
6.
, Which of the following is an example of a prodrug that requires hepatic activation
to become effective?
A) Lisinopril
B) Clopidogrel
C) Furosemide
D) Metformin
Correct Answer: B
Clopidogrel is a prodrug that requires CYP2C19-mediated hepatic activation to its
active metabolite. Lisinopril, furosemide, and metformin are active drugs, not
prodrugs. Poor metabolizers may have reduced clopidogrel efficacy.
7.
A patient with end-stage renal disease is prescribed a drug that is primarily
eliminated unchanged in the urine. What is the most appropriate dosing
adjustment?
A) Increase the dose
B) Decrease the dose or extend the dosing interval
C) No adjustment needed
D) Administer the drug more frequently
Correct Answer: B
Drugs primarily eliminated unchanged by the kidneys require dose reduction or
extended dosing intervals in renal impairment to prevent accumulation and
toxicity. Increasing dose or frequency is unsafe; no adjustment would cause
toxicity.
8.
Which of the following describes the mechanism of competitive antagonism?
A) The antagonist binds to the same receptor site and can be overcome by
increasing agonist concentration
B) The antagonist binds irreversibly to the receptor and cannot be overcome
C) The antagonist activates the receptor but produces the opposite effect
D) The antagonist binds to a different site and enhances agonist effects
