KATZUNG'S BASIC AND
CLINICAL PHARMACOLOGY
16TH EDITION
• AUTHOR(S)TODD W.
VANDERAH
TEST BANK
,Question 1
A nurse is explaining the stages of medication development to a
group of newly hired nurses. Which statement accurately
describes the purpose of Phase III clinical trials?
A. They determine whether a drug is effective and safe in a
large population before regulatory review.
B. They identify a drug candidate using laboratory screening
methods.
C. They evaluate drug metabolism using only animal models.
D. They monitor long-term adverse effects after a drug has been
marketed.
Correct Answer: A
Rationale:
Phase III clinical trials involve large groups of participants to
confirm effectiveness, identify less common adverse effects,
compare the drug with standard therapies, and provide
evidence for regulatory review. Option B describes early drug
discovery. Option C refers to preclinical testing. Option D
describes post-marketing (Phase IV) surveillance.
Question 2
,A patient asks why a newly prescribed medication required
years of testing before becoming available. Which response by
the nurse is most appropriate?
A. "Extensive testing helps establish the medication's safety,
effectiveness, and appropriate use before approval."
B. "Most medications are tested only after they become
available to the public."
C. "The testing process is designed primarily to reduce
manufacturing costs."
D. "Testing is required only to determine the medication's color
and formulation."
Correct Answer: A
Rationale:
Drug development includes laboratory studies, clinical trials,
and regulatory review to evaluate safety, efficacy, dosing, and
risks before approval for public use. The other options
inaccurately describe the purpose of the development process.
Question 3
A nurse is reviewing a medication order for an older adult with
reduced kidney function. Which pharmacokinetic principle is
most important when anticipating the need for dosage
adjustment?
, A. Impaired elimination may increase drug accumulation and
toxicity.
B. Drug absorption is always completely absent in older adults.
C. Distribution is unaffected by changes in body composition.
D. Reduced kidney function increases drug metabolism by the
liver.
Correct Answer: A
Rationale:
Reduced renal function decreases elimination of many
medications, increasing the risk of accumulation and adverse
effects. Absorption is not always absent in older adults.
Distribution often changes because of altered body
composition. Liver metabolism is not increased simply because
renal function declines.
Question 4
A patient taking several prescription medications begins using
an over-the-counter herbal supplement without informing the
healthcare provider. What is the nurse's priority action?
A. Assess for potential drug interactions and encourage the
patient to disclose all medications and supplements.
B. Advise the patient that herbal supplements are always safe
because they are natural.
CLINICAL PHARMACOLOGY
16TH EDITION
• AUTHOR(S)TODD W.
VANDERAH
TEST BANK
,Question 1
A nurse is explaining the stages of medication development to a
group of newly hired nurses. Which statement accurately
describes the purpose of Phase III clinical trials?
A. They determine whether a drug is effective and safe in a
large population before regulatory review.
B. They identify a drug candidate using laboratory screening
methods.
C. They evaluate drug metabolism using only animal models.
D. They monitor long-term adverse effects after a drug has been
marketed.
Correct Answer: A
Rationale:
Phase III clinical trials involve large groups of participants to
confirm effectiveness, identify less common adverse effects,
compare the drug with standard therapies, and provide
evidence for regulatory review. Option B describes early drug
discovery. Option C refers to preclinical testing. Option D
describes post-marketing (Phase IV) surveillance.
Question 2
,A patient asks why a newly prescribed medication required
years of testing before becoming available. Which response by
the nurse is most appropriate?
A. "Extensive testing helps establish the medication's safety,
effectiveness, and appropriate use before approval."
B. "Most medications are tested only after they become
available to the public."
C. "The testing process is designed primarily to reduce
manufacturing costs."
D. "Testing is required only to determine the medication's color
and formulation."
Correct Answer: A
Rationale:
Drug development includes laboratory studies, clinical trials,
and regulatory review to evaluate safety, efficacy, dosing, and
risks before approval for public use. The other options
inaccurately describe the purpose of the development process.
Question 3
A nurse is reviewing a medication order for an older adult with
reduced kidney function. Which pharmacokinetic principle is
most important when anticipating the need for dosage
adjustment?
, A. Impaired elimination may increase drug accumulation and
toxicity.
B. Drug absorption is always completely absent in older adults.
C. Distribution is unaffected by changes in body composition.
D. Reduced kidney function increases drug metabolism by the
liver.
Correct Answer: A
Rationale:
Reduced renal function decreases elimination of many
medications, increasing the risk of accumulation and adverse
effects. Absorption is not always absent in older adults.
Distribution often changes because of altered body
composition. Liver metabolism is not increased simply because
renal function declines.
Question 4
A patient taking several prescription medications begins using
an over-the-counter herbal supplement without informing the
healthcare provider. What is the nurse's priority action?
A. Assess for potential drug interactions and encourage the
patient to disclose all medications and supplements.
B. Advise the patient that herbal supplements are always safe
because they are natural.
