KATZUNG'S BASIC AND
CLINICAL PHARMACOLOGY
16TH EDITION
• AUTHOR(S)TODD W.
VANDERAH
TEST BANK
,Question 1
A nurse is participating in a clinical trial for a newly developed
medication. Which statement best describes the primary
purpose of a Phase III clinical trial?
A. To determine the drug's mechanism of action in laboratory
models
B. To evaluate safety and effectiveness in a large population
before regulatory review
C. To identify the chemical structure of the medication
D. To monitor rare adverse effects after the drug has been
marketed
Correct Answer: B
Rationale:
Phase III trials involve large groups of participants and are
designed to confirm therapeutic effectiveness, monitor
common adverse effects, compare the medication with
standard treatments, and provide data for regulatory approval.
Option A describes preclinical research. Option C occurs much
earlier during drug discovery. Option D describes post-
marketing (Phase IV) surveillance.
Question 2
,A nurse is reviewing a newly prescribed medication that has a
narrow therapeutic index. Which nursing action is the highest
priority?
A. Encourage the patient to increase fluid intake.
B. Monitor prescribed laboratory values and assess for signs of
toxicity.
C. Administer the medication with meals.
D. Instruct the patient to avoid dairy products.
Correct Answer: B
Rationale:
Drugs with a narrow therapeutic index have a small margin
between therapeutic and toxic concentrations. Careful
laboratory monitoring and assessment for toxicity are essential
to promote safe therapy. The remaining options may be
appropriate for specific medications but are not universally
required for all drugs with a narrow therapeutic index.
Question 3
A patient asks why generic medications are commonly
substituted for brand-name drugs. Which response by the nurse
is most accurate?
A. Generic medications always produce greater therapeutic
effects.
, B. Generic medications must demonstrate pharmaceutical
equivalence and acceptable bioequivalence to the reference
product.
C. Generic medications contain completely different active
ingredients.
D. Generic medications undergo no regulatory review before
marketing.
Correct Answer: B
Rationale:
Approved generic medications are expected to have the same
active ingredient, dosage form, strength, route of
administration, and acceptable bioequivalence as the reference
product. They are reviewed by regulatory authorities before
approval. Options A, C, and D are inaccurate.
Question 4
A nurse is educating a patient about medication safety. Which
patient statement demonstrates understanding of the
importance of reporting adverse drug reactions?
A. "I should only report symptoms that occur immediately after
taking a medication."
B. "I should tell my healthcare provider about unexpected
symptoms that occur while taking my medication."
CLINICAL PHARMACOLOGY
16TH EDITION
• AUTHOR(S)TODD W.
VANDERAH
TEST BANK
,Question 1
A nurse is participating in a clinical trial for a newly developed
medication. Which statement best describes the primary
purpose of a Phase III clinical trial?
A. To determine the drug's mechanism of action in laboratory
models
B. To evaluate safety and effectiveness in a large population
before regulatory review
C. To identify the chemical structure of the medication
D. To monitor rare adverse effects after the drug has been
marketed
Correct Answer: B
Rationale:
Phase III trials involve large groups of participants and are
designed to confirm therapeutic effectiveness, monitor
common adverse effects, compare the medication with
standard treatments, and provide data for regulatory approval.
Option A describes preclinical research. Option C occurs much
earlier during drug discovery. Option D describes post-
marketing (Phase IV) surveillance.
Question 2
,A nurse is reviewing a newly prescribed medication that has a
narrow therapeutic index. Which nursing action is the highest
priority?
A. Encourage the patient to increase fluid intake.
B. Monitor prescribed laboratory values and assess for signs of
toxicity.
C. Administer the medication with meals.
D. Instruct the patient to avoid dairy products.
Correct Answer: B
Rationale:
Drugs with a narrow therapeutic index have a small margin
between therapeutic and toxic concentrations. Careful
laboratory monitoring and assessment for toxicity are essential
to promote safe therapy. The remaining options may be
appropriate for specific medications but are not universally
required for all drugs with a narrow therapeutic index.
Question 3
A patient asks why generic medications are commonly
substituted for brand-name drugs. Which response by the nurse
is most accurate?
A. Generic medications always produce greater therapeutic
effects.
, B. Generic medications must demonstrate pharmaceutical
equivalence and acceptable bioequivalence to the reference
product.
C. Generic medications contain completely different active
ingredients.
D. Generic medications undergo no regulatory review before
marketing.
Correct Answer: B
Rationale:
Approved generic medications are expected to have the same
active ingredient, dosage form, strength, route of
administration, and acceptable bioequivalence as the reference
product. They are reviewed by regulatory authorities before
approval. Options A, C, and D are inaccurate.
Question 4
A nurse is educating a patient about medication safety. Which
patient statement demonstrates understanding of the
importance of reporting adverse drug reactions?
A. "I should only report symptoms that occur immediately after
taking a medication."
B. "I should tell my healthcare provider about unexpected
symptoms that occur while taking my medication."
