PHARMACOLOGY FOR NURSES 19TH EDITION BY
MICHELLE J. WILLIHNGANZ | ALL CHAPTERS 100%
VERIFIED ANSWERS|
UPDATED 2025/2026 | GRADED A+
,CHAPTER 1: DRUG DEFINITIONS, STANDARDS, AND INFORMATION
SOURCES
1. A nurse is teaching a patient about the difference between a brand-name and
a generic drug. Which statement by the patient indicates correct
understanding?
A. "The active ingredient in a generic drug is different but works the same."
B. "Generic drugs must meet the same standards for safety and effectiveness as
brand-name drugs."
C. "Generic drugs are always produced in the same factory as brand-name drugs."
D. "Generic drugs do not have to be approved by regulatory agencies."
Correct answer: B.
Explanation: Generic drugs contain the same active ingredient, strength, dosage
form, and route of administration as the brand-name product and must meet the
same standards for safety, quality, and effectiveness set by regulatory agencies
(e.g., FDA). Option A is incorrect because the active ingredient is the same. Option
C is not necessarily true — generics may be manufactured by different companies.
Option D is false because generics require regulatory approval.
2. Which source is the most reliable for up-to-date, evidence-based drug
interactions at the point of care?
A. A medication pamphlet provided by the manufacturer
B. A current, reputable electronic drug database (e.g., Micromedex, Lexicomp)
,C. A pharmacology textbook published 10 years ago
D. Anecdotal reports from other nurses
Correct answer: B.
Explanation: Electronic drug databases are regularly updated and provide
evidence-based interaction checking, dosing guidance, and references.
Manufacturer pamphlets may be biased or incomplete; textbooks can be outdated;
anecdotal reports are not reliable.
3. Which government agency is primarily responsible for approving new drugs
for marketing in the United States?
A. Centers for Disease Control and Prevention (CDC)
B. Food and Drug Administration (FDA)
C. National Institutes of Health (NIH)
D. Drug Enforcement Administration (DEA)
Correct answer: B.
Explanation: The FDA reviews safety and efficacy data and approves drugs for
marketing. CDC and NIH have different public health and research roles. The
DEA regulates controlled substances but does not approve drugs for marketing.
4. A nurse reviews a new medication order and notes it is an investigational
drug being used under an Institutional Review Board (IRB)-approved
protocol. Which action is the nurse's priority?
, A. Administer the drug without extra documentation because the physician ordered
it.
B. Ensure informed consent is on the chart and follows study-specific procedures
before administration.
C. Refuse to give the drug because investigational drugs are never allowed on
clinical units.
D. Substitute the standard medication since investigational drugs are experimental.
Correct answer: B.
Explanation: Investigational drugs require informed consent and adherence to
protocol and documentation. Nurses must confirm consent and follow study-
specific procedures. Options A, C, and D are incorrect.
5. Which term best describes the study of how the body affects a drug
(absorption, distribution, metabolism, and excretion)?
A. Pharmacodynamics
B. Pharmacokinetics
C. Pharmacogenomics
D. Pharmacotherapeutics
Correct answer: B.
Explanation: Pharmacokinetics describes what the body does to the drug
(ADME). Pharmacodynamics describes what the drug does to the body.
Pharmacogenomics studies genetic influences; pharmacotherapeutics focuses on
therapeutic uses of drugs.