Nursing Pharmacology Test Bank
Chapter 6: Challenges to Effective Drug
Therapy
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
Disclaimer: This document is intended for educational purposes only. It is an original, student-created study aid based
on the listed textbook. This material is not affiliated with, endorsed by, or sourced from the publisher or author. Use
this resource responsibly and in accordance with your institution’s academic policies.
, NCLEX Pharmacology Test Bank – Chapter 6 Challenges to Effective Drug Therapy – 50
Questions + Rationales + Cheat Sheet – Karch Focus on Nursing Pharmacology 8th Edition
1. A client reports using herbal supplements daily. Which action should the nurse take first?
A. Document the use of supplements
B. Instruct the client to stop all herbals
C. Assess which supplements and how often they are used
D. Notify the prescriber immediately
Correct Answer: C. Assess which supplements and how often they are used
Rationale: The nurse should assess and gather detailed information first. Some herbals interact
with medications, but stopping them without context may be inappropriate.
2. A client is interested in purchasing medication from an online pharmacy. What is the
nurse’s priority teaching point?
A. Avoid all online drug purchases
B. Ensure the site is FDA-registered and legitimate
C. Online drugs are less effective
D. Check with insurance first
Correct Answer: B. Ensure the site is FDA-registered and legitimate
Rationale: Online pharmacies can be safe if they are verified (e.g., VIPPS-certified). Educating
on safe sources is the priority.
3. A nurse is educating a client about off-label drug use. Which statement best defines this
concept?
A. Taking a drug without a prescription
B. Using a drug for an unapproved indication
C. Taking more than the prescribed dose
D. Using expired medication
Correct Answer: B. Using a drug for an unapproved indication
Rationale: Off-label use refers to prescribing a drug for conditions not listed in the FDA
approval. It's legal but requires clinical judgment.
4. A client refuses medication due to high cost. What should the nurse do first?
2
, NCLEX Pharmacology Test Bank – Chapter 6 Challenges to Effective Drug Therapy – 50
Questions + Rationales + Cheat Sheet – Karch Focus on Nursing Pharmacology 8th Edition
A. Notify the prescriber
B. Recommend an herbal alternative
C. Refer the client to social services
D. Educate the client on medication importance
Correct Answer: A. Notify the prescriber
Rationale: The provider may prescribe a more affordable or generic alternative. Addressing the
cause of nonadherence is key.
5. A nurse is preparing a teaching session on alternative therapies. Which statement should
be included?
A. “All herbal products are safe because they’re natural.”
B. “Herbal supplements are FDA-regulated just like drugs.”
C. “Some herbal therapies can interfere with prescription medications.”
D. “Supplements can be used freely with antibiotics.”
Correct Answer: C. “Some herbal therapies can interfere with prescription medications.”
Rationale: Herbal products may have significant drug interactions. They are not strictly
regulated for safety and efficacy.
6. Which client is most at risk for challenges related to drug therapy effectiveness?
A. A 40-year-old using a local pharmacy
B. A 65-year-old taking 8 prescription medications
C. A 22-year-old with no chronic illnesses
D. A 30-year-old using brand-name prescriptions
Correct Answer: B. A 65-year-old taking 8 prescription medications
Rationale: Older adults with polypharmacy are at higher risk for interactions, errors, and
adverse effects.
3
Chapter 6: Challenges to Effective Drug
Therapy
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
Disclaimer: This document is intended for educational purposes only. It is an original, student-created study aid based
on the listed textbook. This material is not affiliated with, endorsed by, or sourced from the publisher or author. Use
this resource responsibly and in accordance with your institution’s academic policies.
, NCLEX Pharmacology Test Bank – Chapter 6 Challenges to Effective Drug Therapy – 50
Questions + Rationales + Cheat Sheet – Karch Focus on Nursing Pharmacology 8th Edition
1. A client reports using herbal supplements daily. Which action should the nurse take first?
A. Document the use of supplements
B. Instruct the client to stop all herbals
C. Assess which supplements and how often they are used
D. Notify the prescriber immediately
Correct Answer: C. Assess which supplements and how often they are used
Rationale: The nurse should assess and gather detailed information first. Some herbals interact
with medications, but stopping them without context may be inappropriate.
2. A client is interested in purchasing medication from an online pharmacy. What is the
nurse’s priority teaching point?
A. Avoid all online drug purchases
B. Ensure the site is FDA-registered and legitimate
C. Online drugs are less effective
D. Check with insurance first
Correct Answer: B. Ensure the site is FDA-registered and legitimate
Rationale: Online pharmacies can be safe if they are verified (e.g., VIPPS-certified). Educating
on safe sources is the priority.
3. A nurse is educating a client about off-label drug use. Which statement best defines this
concept?
A. Taking a drug without a prescription
B. Using a drug for an unapproved indication
C. Taking more than the prescribed dose
D. Using expired medication
Correct Answer: B. Using a drug for an unapproved indication
Rationale: Off-label use refers to prescribing a drug for conditions not listed in the FDA
approval. It's legal but requires clinical judgment.
4. A client refuses medication due to high cost. What should the nurse do first?
2
, NCLEX Pharmacology Test Bank – Chapter 6 Challenges to Effective Drug Therapy – 50
Questions + Rationales + Cheat Sheet – Karch Focus on Nursing Pharmacology 8th Edition
A. Notify the prescriber
B. Recommend an herbal alternative
C. Refer the client to social services
D. Educate the client on medication importance
Correct Answer: A. Notify the prescriber
Rationale: The provider may prescribe a more affordable or generic alternative. Addressing the
cause of nonadherence is key.
5. A nurse is preparing a teaching session on alternative therapies. Which statement should
be included?
A. “All herbal products are safe because they’re natural.”
B. “Herbal supplements are FDA-regulated just like drugs.”
C. “Some herbal therapies can interfere with prescription medications.”
D. “Supplements can be used freely with antibiotics.”
Correct Answer: C. “Some herbal therapies can interfere with prescription medications.”
Rationale: Herbal products may have significant drug interactions. They are not strictly
regulated for safety and efficacy.
6. Which client is most at risk for challenges related to drug therapy effectiveness?
A. A 40-year-old using a local pharmacy
B. A 65-year-old taking 8 prescription medications
C. A 22-year-old with no chronic illnesses
D. A 30-year-old using brand-name prescriptions
Correct Answer: B. A 65-year-old taking 8 prescription medications
Rationale: Older adults with polypharmacy are at higher risk for interactions, errors, and
adverse effects.
3
