Nursing Pharmacology Test Bank
Chapter 1: Introduction to Drugs
Based on: Focus on Nursing Pharmacology
8th Edition by Amy M. Karch
✔ Verified NCLEX-Style Questions
✔ Detailed Rationales for Every Answer
✔ Covers Core Pharmacology Concepts
✔ Ideal for Nursing Students, ATI, HESI, and NCLEX Prep
This NCLEX-style test bank is an original educational resource based on Chapter 1 of Focus on Nursing
Pharmacology (8th Edition) by Amy M. Karch. It is not affiliated with or endorsed by the publisher,
NCLEX®, ATI, or HESI. For educational use only.
, NCLEX Pharmacology Test Bank – Chapter 1 Introduction to Drugs – 50
Questions + Rationales + Cheat Sheet – Karch Focus on Nursing Pharmacology
8th Edition
1. A patient asks the nurse to explain what a drug is. Which of the following definitions
is most accurate?
A. A chemical that treats only chronic illness
B. A chemical substance used to prevent, diagnose, or treat a condition
C. A substance that interacts with nutrients to improve health
D. A product made from only natural sources
Answer: B
Rationale: A drug is any chemical substance used in the prevention, diagnosis,
treatment, or cure of a condition or disease.
2. Which statement about generic drugs is accurate?
A. They are chemically different from brand-name drugs
B. They are less effective than brand-name versions
C. They may have different inactive ingredients than the brand-name version
D. They cost more due to increased testing requirements
Answer: C
Rationale: Generic drugs have the same active ingredients but may contain different
binders or fillers that can affect absorption in some patients.
3. The Controlled Substances Act classifies drugs based on which of the following
criteria?
A. How long the drug has been on the market
B. Risk of teratogenicity
C. Potential for abuse and dependency
D. Number of reported side effects
Answer: C
Rationale: Controlled substances are classified into Schedules I–V according to their
potential for abuse and physical/psychological dependence.
4. Which of the following is classified as a Schedule II drug?
A. Acetaminophen
B. Heroin
C. Morphine
D. Diphenhydramine
2
, NCLEX Pharmacology Test Bank – Chapter 1 Introduction to Drugs – 50
Questions + Rationales + Cheat Sheet – Karch Focus on Nursing Pharmacology
8th Edition
Answer: C
Rationale: Morphine is a Schedule II drug due to its high potential for abuse but
accepted medical use. Heroin is Schedule I (no accepted use).
5. During drug development, what is the purpose of Phase I clinical trials?
A. To determine safety and dosage in healthy volunteers
B. To identify the drug’s market potential
C. To evaluate effectiveness in large populations
D. To assess teratogenic effects
Answer: A
Rationale: Phase I trials focus on drug safety and dosage in a small group of healthy
individuals before testing in patients.
6. A nurse is reviewing a drug with a Category X pregnancy rating. What is the
appropriate nursing action?
A. Administer only during the third trimester
B. Instruct patient to avoid alcohol while taking the drug
C. Inform the patient that the drug is safe in low doses
D. Inform the patient that the drug is contraindicated during pregnancy
Answer: D
Rationale: Category X drugs are proven to cause fetal abnormalities and are
contraindicated in pregnancy.
7. Which route of drug administration is most likely to undergo first-pass metabolism?
A. Intramuscular
B. Sublingual
C. Intravenous
D. Oral
Answer: D
Rationale: Oral drugs pass through the liver before entering systemic circulation, which
may reduce drug bioavailability.
3
Chapter 1: Introduction to Drugs
Based on: Focus on Nursing Pharmacology
8th Edition by Amy M. Karch
✔ Verified NCLEX-Style Questions
✔ Detailed Rationales for Every Answer
✔ Covers Core Pharmacology Concepts
✔ Ideal for Nursing Students, ATI, HESI, and NCLEX Prep
This NCLEX-style test bank is an original educational resource based on Chapter 1 of Focus on Nursing
Pharmacology (8th Edition) by Amy M. Karch. It is not affiliated with or endorsed by the publisher,
NCLEX®, ATI, or HESI. For educational use only.
, NCLEX Pharmacology Test Bank – Chapter 1 Introduction to Drugs – 50
Questions + Rationales + Cheat Sheet – Karch Focus on Nursing Pharmacology
8th Edition
1. A patient asks the nurse to explain what a drug is. Which of the following definitions
is most accurate?
A. A chemical that treats only chronic illness
B. A chemical substance used to prevent, diagnose, or treat a condition
C. A substance that interacts with nutrients to improve health
D. A product made from only natural sources
Answer: B
Rationale: A drug is any chemical substance used in the prevention, diagnosis,
treatment, or cure of a condition or disease.
2. Which statement about generic drugs is accurate?
A. They are chemically different from brand-name drugs
B. They are less effective than brand-name versions
C. They may have different inactive ingredients than the brand-name version
D. They cost more due to increased testing requirements
Answer: C
Rationale: Generic drugs have the same active ingredients but may contain different
binders or fillers that can affect absorption in some patients.
3. The Controlled Substances Act classifies drugs based on which of the following
criteria?
A. How long the drug has been on the market
B. Risk of teratogenicity
C. Potential for abuse and dependency
D. Number of reported side effects
Answer: C
Rationale: Controlled substances are classified into Schedules I–V according to their
potential for abuse and physical/psychological dependence.
4. Which of the following is classified as a Schedule II drug?
A. Acetaminophen
B. Heroin
C. Morphine
D. Diphenhydramine
2
, NCLEX Pharmacology Test Bank – Chapter 1 Introduction to Drugs – 50
Questions + Rationales + Cheat Sheet – Karch Focus on Nursing Pharmacology
8th Edition
Answer: C
Rationale: Morphine is a Schedule II drug due to its high potential for abuse but
accepted medical use. Heroin is Schedule I (no accepted use).
5. During drug development, what is the purpose of Phase I clinical trials?
A. To determine safety and dosage in healthy volunteers
B. To identify the drug’s market potential
C. To evaluate effectiveness in large populations
D. To assess teratogenic effects
Answer: A
Rationale: Phase I trials focus on drug safety and dosage in a small group of healthy
individuals before testing in patients.
6. A nurse is reviewing a drug with a Category X pregnancy rating. What is the
appropriate nursing action?
A. Administer only during the third trimester
B. Instruct patient to avoid alcohol while taking the drug
C. Inform the patient that the drug is safe in low doses
D. Inform the patient that the drug is contraindicated during pregnancy
Answer: D
Rationale: Category X drugs are proven to cause fetal abnormalities and are
contraindicated in pregnancy.
7. Which route of drug administration is most likely to undergo first-pass metabolism?
A. Intramuscular
B. Sublingual
C. Intravenous
D. Oral
Answer: D
Rationale: Oral drugs pass through the liver before entering systemic circulation, which
may reduce drug bioavailability.
3
