Nursing Pharmacology 2026/2027 | Practice
Questions & Verified Answers | Comprehensive
Pharmacology Exam Review
SECTION 1 FOUNDATIONS OF PHARMACOLOGY
Question 1
A nurse is teaching a patient about a newly prescribed medication.
Which statement best explains pharmacokinetics?
A. How a medication produces its therapeutic effect
B. How the body absorbs, distributes, metabolizes, and eliminates a
medication
C. How medications interact with receptor sites
D. How a medication changes the function of an organ
Correct Answer: B
Rationale: Pharmacokinetics describes what the body does to a drug
through absorption, distribution, metabolism, and excretion.
Pharmacodynamics describes what the drug does to the body. Receptor
binding is part of pharmacodynamics.
Distractors: A and C describe pharmacodynamics. D is too broad and
does not describe the ADME processes.
Clinical Pearl: Remember ADME = Absorption, Distribution,
Metabolism, Excretion.
Learning Objective: Differentiate pharmacokinetics from
pharmacodynamics.
Difficulty: Easy
Cognitive Level: Application
,Question 2
A patient with severe liver disease is prescribed a medication primarily
metabolized by the liver. Which pharmacologic consequence should the
nurse anticipate?
A. Faster medication elimination
B. Increased risk of medication accumulation
C. Reduced medication absorption from the intestine
D. Increased renal clearance
Correct Answer: B
Rationale: Impaired hepatic metabolism can decrease drug clearance
and increase serum concentrations, increasing toxicity risk.
Distractors: A and D are opposite of the expected effect. C is not the
primary consequence of impaired hepatic metabolism.
Clinical Pearl: Liver dysfunction can increase exposure to hepatically
metabolized drugs.
Learning Objective: Relate hepatic function to medication metabolism.
Difficulty: Moderate
Cognitive Level: Application
Question 3
Which patient factor is most likely to increase the risk of adverse
medication effects from a normally prescribed dose?
A. Increased skeletal muscle mass
B. Advanced age with decreased renal function
,C. High daily fluid intake
D. Regular physical activity
Correct Answer: B
Rationale: Older adults may have decreased renal and hepatic function,
altered body composition, and increased pharmacodynamic sensitivity,
increasing adverse-effect risk.
Distractors: A, C, and D do not inherently produce the same
medication-clearance concern.
Clinical Pearl: Older adults often require careful medication review and
monitoring.
Learning Objective: Identify age-related medication risks.
Difficulty: Easy
Cognitive Level: Application
Question 4
A patient asks why a medication must be taken at approximately the
same time every day. Which explanation is most appropriate?
A. It prevents all adverse effects.
B. It maintains a relatively consistent therapeutic drug concentration.
C. It guarantees that the medication will be absorbed completely.
D. It eliminates the need for monitoring.
Correct Answer: B
Rationale: Consistent administration helps maintain therapeutic
concentrations and supports predictable treatment effects.
Distractors: A, C, and D make absolute claims that are not
pharmacologically accurate.
, Clinical Pearl: Consistent timing supports consistent drug exposure.
Learning Objective: Explain the importance of medication scheduling.
Difficulty: Easy
Cognitive Level: Application
Question 5
A medication has a half-life of 8 hours. The nurse understands that the
half-life represents:
A. The time required for the drug to begin working
B. The time required for half of the drug to be eliminated
C. The time required for complete elimination
D. The time required to reach peak effect
Correct Answer: B
Rationale: Half-life is the time required for the plasma concentration of
a drug to decrease by approximately 50%.
Distractors: A refers to onset; D refers to peak effect. C incorrectly
assumes complete elimination after one half-life.
Clinical Pearl: One half-life removes about 50%, not 100%, of the
drug.
Learning Objective: Interpret medication half-life.
Difficulty: Easy
Cognitive Level: Recall
Question 6 — SATA
Which factors can affect medication absorption? Select all that apply.
Questions & Verified Answers | Comprehensive
Pharmacology Exam Review
SECTION 1 FOUNDATIONS OF PHARMACOLOGY
Question 1
A nurse is teaching a patient about a newly prescribed medication.
Which statement best explains pharmacokinetics?
A. How a medication produces its therapeutic effect
B. How the body absorbs, distributes, metabolizes, and eliminates a
medication
C. How medications interact with receptor sites
D. How a medication changes the function of an organ
Correct Answer: B
Rationale: Pharmacokinetics describes what the body does to a drug
through absorption, distribution, metabolism, and excretion.
Pharmacodynamics describes what the drug does to the body. Receptor
binding is part of pharmacodynamics.
Distractors: A and C describe pharmacodynamics. D is too broad and
does not describe the ADME processes.
Clinical Pearl: Remember ADME = Absorption, Distribution,
Metabolism, Excretion.
Learning Objective: Differentiate pharmacokinetics from
pharmacodynamics.
Difficulty: Easy
Cognitive Level: Application
,Question 2
A patient with severe liver disease is prescribed a medication primarily
metabolized by the liver. Which pharmacologic consequence should the
nurse anticipate?
A. Faster medication elimination
B. Increased risk of medication accumulation
C. Reduced medication absorption from the intestine
D. Increased renal clearance
Correct Answer: B
Rationale: Impaired hepatic metabolism can decrease drug clearance
and increase serum concentrations, increasing toxicity risk.
Distractors: A and D are opposite of the expected effect. C is not the
primary consequence of impaired hepatic metabolism.
Clinical Pearl: Liver dysfunction can increase exposure to hepatically
metabolized drugs.
Learning Objective: Relate hepatic function to medication metabolism.
Difficulty: Moderate
Cognitive Level: Application
Question 3
Which patient factor is most likely to increase the risk of adverse
medication effects from a normally prescribed dose?
A. Increased skeletal muscle mass
B. Advanced age with decreased renal function
,C. High daily fluid intake
D. Regular physical activity
Correct Answer: B
Rationale: Older adults may have decreased renal and hepatic function,
altered body composition, and increased pharmacodynamic sensitivity,
increasing adverse-effect risk.
Distractors: A, C, and D do not inherently produce the same
medication-clearance concern.
Clinical Pearl: Older adults often require careful medication review and
monitoring.
Learning Objective: Identify age-related medication risks.
Difficulty: Easy
Cognitive Level: Application
Question 4
A patient asks why a medication must be taken at approximately the
same time every day. Which explanation is most appropriate?
A. It prevents all adverse effects.
B. It maintains a relatively consistent therapeutic drug concentration.
C. It guarantees that the medication will be absorbed completely.
D. It eliminates the need for monitoring.
Correct Answer: B
Rationale: Consistent administration helps maintain therapeutic
concentrations and supports predictable treatment effects.
Distractors: A, C, and D make absolute claims that are not
pharmacologically accurate.
, Clinical Pearl: Consistent timing supports consistent drug exposure.
Learning Objective: Explain the importance of medication scheduling.
Difficulty: Easy
Cognitive Level: Application
Question 5
A medication has a half-life of 8 hours. The nurse understands that the
half-life represents:
A. The time required for the drug to begin working
B. The time required for half of the drug to be eliminated
C. The time required for complete elimination
D. The time required to reach peak effect
Correct Answer: B
Rationale: Half-life is the time required for the plasma concentration of
a drug to decrease by approximately 50%.
Distractors: A refers to onset; D refers to peak effect. C incorrectly
assumes complete elimination after one half-life.
Clinical Pearl: One half-life removes about 50%, not 100%, of the
drug.
Learning Objective: Interpret medication half-life.
Difficulty: Easy
Cognitive Level: Recall
Question 6 — SATA
Which factors can affect medication absorption? Select all that apply.
