Abrams’ Clinical Drug Therapy: Rationales for Nursing
Practice 13th Edition | NCLEX-Style Questions, Answers
& Rationales | Complete Pharmacology Study Guide
2026/2027
,Q1–25: Pharmacology Foundations & Medication Safety
1. A nurse is explaining pharmacokinetics to a nursing student. Which process describes
the movement of a medication through the body?
A. Drug-receptor interaction
B. Absorption, distribution, metabolism, and excretion
C. Therapeutic effect and adverse effects
D. Medication administration and patient response
Answer: B. Absorption, distribution, metabolism, and excretion
Rationale: Pharmacokinetics describes what the body does to a drug through absorption,
distribution, metabolism, and excretion.
2. Which route of medication administration generally produces the most rapid systemic
effect?
A. Oral
B. Subcutaneous
C. Intravenous
D. Intramuscular
Answer: C. Intravenous
Rationale: IV administration places the medication directly into the bloodstream, producing
essentially immediate systemic availability.
3. A patient asks why an enteric-coated tablet should not be crushed. What is the nurse's
best response?
A. "Crushing it will increase its taste."
B. "The coating helps prevent the medication from being absorbed too quickly or irritating the
stomach."
C. "Crushing it makes the medication inactive."
D. "The medication will become toxic if crushed."
,Answer: B. "The coating helps prevent the medication from being absorbed too quickly or
irritating the stomach."
Rationale: Enteric coatings are designed to resist dissolution in the stomach and allow drug
release in the intestine.
4. Which organ is primarily responsible for the metabolism of most medications?
A. Heart
B. Liver
C. Pancreas
D. Spleen
Answer: B. Liver
Rationale: The liver is the major site of drug metabolism, although other tissues can also
metabolize medications.
5. Which organ is primarily responsible for the excretion of many medications and their
metabolites?
A. Kidneys
B. Lungs
C. Thyroid
D. Gallbladder
Answer: A. Kidneys
Rationale: The kidneys eliminate many drugs and metabolites through urine.
6. A patient with severe renal impairment receives a medication normally eliminated by
the kidneys. What should the nurse anticipate?
A. The medication will always be ineffective.
B. The medication may accumulate in the body.
, C. The medication will be absorbed faster.
D. The medication will automatically become inactive.
Answer: B. The medication may accumulate in the body.
Rationale: Reduced renal clearance can cause medications or active metabolites to
accumulate, increasing the risk of toxicity.
7. Which term describes the concentration of a medication required to produce a desired
therapeutic effect?
A. Therapeutic dose
B. Toxic dose
C. Loading dose
D. Lethal dose
Answer: A. Therapeutic dose
Rationale: The therapeutic dose produces the intended clinical effect without producing
unacceptable toxicity.
8. The nurse is administering a medication with a narrow therapeutic index. What is the
priority?
A. Administer it without monitoring.
B. Monitor the patient closely for therapeutic and toxic effects.
C. Double the dose if the patient does not respond immediately.
D. Give it only with food.
Answer: B. Monitor the patient closely for therapeutic and toxic effects.
Rationale: Drugs with a narrow therapeutic index have a small margin between effective and
toxic concentrations.
9. Which medication-related error should the nurse report immediately?
Practice 13th Edition | NCLEX-Style Questions, Answers
& Rationales | Complete Pharmacology Study Guide
2026/2027
,Q1–25: Pharmacology Foundations & Medication Safety
1. A nurse is explaining pharmacokinetics to a nursing student. Which process describes
the movement of a medication through the body?
A. Drug-receptor interaction
B. Absorption, distribution, metabolism, and excretion
C. Therapeutic effect and adverse effects
D. Medication administration and patient response
Answer: B. Absorption, distribution, metabolism, and excretion
Rationale: Pharmacokinetics describes what the body does to a drug through absorption,
distribution, metabolism, and excretion.
2. Which route of medication administration generally produces the most rapid systemic
effect?
A. Oral
B. Subcutaneous
C. Intravenous
D. Intramuscular
Answer: C. Intravenous
Rationale: IV administration places the medication directly into the bloodstream, producing
essentially immediate systemic availability.
3. A patient asks why an enteric-coated tablet should not be crushed. What is the nurse's
best response?
A. "Crushing it will increase its taste."
B. "The coating helps prevent the medication from being absorbed too quickly or irritating the
stomach."
C. "Crushing it makes the medication inactive."
D. "The medication will become toxic if crushed."
,Answer: B. "The coating helps prevent the medication from being absorbed too quickly or
irritating the stomach."
Rationale: Enteric coatings are designed to resist dissolution in the stomach and allow drug
release in the intestine.
4. Which organ is primarily responsible for the metabolism of most medications?
A. Heart
B. Liver
C. Pancreas
D. Spleen
Answer: B. Liver
Rationale: The liver is the major site of drug metabolism, although other tissues can also
metabolize medications.
5. Which organ is primarily responsible for the excretion of many medications and their
metabolites?
A. Kidneys
B. Lungs
C. Thyroid
D. Gallbladder
Answer: A. Kidneys
Rationale: The kidneys eliminate many drugs and metabolites through urine.
6. A patient with severe renal impairment receives a medication normally eliminated by
the kidneys. What should the nurse anticipate?
A. The medication will always be ineffective.
B. The medication may accumulate in the body.
, C. The medication will be absorbed faster.
D. The medication will automatically become inactive.
Answer: B. The medication may accumulate in the body.
Rationale: Reduced renal clearance can cause medications or active metabolites to
accumulate, increasing the risk of toxicity.
7. Which term describes the concentration of a medication required to produce a desired
therapeutic effect?
A. Therapeutic dose
B. Toxic dose
C. Loading dose
D. Lethal dose
Answer: A. Therapeutic dose
Rationale: The therapeutic dose produces the intended clinical effect without producing
unacceptable toxicity.
8. The nurse is administering a medication with a narrow therapeutic index. What is the
priority?
A. Administer it without monitoring.
B. Monitor the patient closely for therapeutic and toxic effects.
C. Double the dose if the patient does not respond immediately.
D. Give it only with food.
Answer: B. Monitor the patient closely for therapeutic and toxic effects.
Rationale: Drugs with a narrow therapeutic index have a small margin between effective and
toxic concentrations.
9. Which medication-related error should the nurse report immediately?
