KATZUNG'S BASIC AND
CLINICAL PHARMACOLOGY
16TH EDITION
• AUTHOR(S)TODD W.
VANDERAH
TEST BANK
,Question 1
A nurse is reviewing information about a medication that has
completed laboratory and animal testing and is now being
administered to a small group of healthy volunteers to evaluate
safety and dosage ranges. Which stage of drug development is
occurring?
A. Preclinical testing
B. Phase I clinical trial
C. Phase II clinical trial
D. Phase III clinical trial
Correct Answer: B
Rationale:
Phase I clinical trials involve a small number of healthy
volunteers (or patients in certain situations) and primarily
evaluate safety, tolerability, pharmacokinetics, and dosage
ranges. Preclinical testing (Option A) occurs before human
subjects are involved. Phase II (Option C) focuses on
effectiveness in patients with the disease while continuing
safety evaluation. Phase III (Option D) compares the new
therapy with standard treatments in much larger patient
populations.
Question 2
,A nurse is teaching a patient about why two individuals
receiving the same medication may experience different
therapeutic responses. Which explanation is most accurate?
A. Drug response is determined only by body weight.
B. Individual responses may vary because of genetic,
physiologic, and environmental factors.
C. Drug response depends only on the patient's age.
D. Medications produce identical effects in all patients when
prescribed correctly.
Correct Answer: B
Rationale:
Drug response varies because of multiple factors including
genetics, organ function, age, concurrent diseases, nutrition,
and drug interactions. Body weight (Option A) and age (Option
C) influence response but are not the only determinants. Option
D is incorrect because substantial variability exists among
patients.
Question 3
A nurse administers an intravenous medication for rapid pain
relief. Which characteristic of the intravenous route best
explains the rapid onset?
, A. The medication undergoes first-pass metabolism before
reaching circulation.
B. Drug absorption occurs slowly through adipose tissue.
C. The medication enters the systemic circulation directly.
D. Gastric acid enhances drug activation.
Correct Answer: C
Rationale:
Intravenous administration delivers medication directly into the
bloodstream, resulting in immediate systemic availability and
rapid onset. First-pass metabolism (Option A) occurs with many
orally administered medications, not intravenous drugs.
Adipose tissue absorption (Option B) is unrelated to IV
administration. Gastric acid (Option D) has no role in
intravenous drug delivery.
Question 4
A nurse is caring for a patient with severe liver dysfunction who
is beginning oral medication therapy. Which consideration is
most important?
A. Drug metabolism may be reduced, increasing the risk of
toxicity.
B. Drug elimination through the lungs is always increased.
C. Oral medications bypass hepatic metabolism.
CLINICAL PHARMACOLOGY
16TH EDITION
• AUTHOR(S)TODD W.
VANDERAH
TEST BANK
,Question 1
A nurse is reviewing information about a medication that has
completed laboratory and animal testing and is now being
administered to a small group of healthy volunteers to evaluate
safety and dosage ranges. Which stage of drug development is
occurring?
A. Preclinical testing
B. Phase I clinical trial
C. Phase II clinical trial
D. Phase III clinical trial
Correct Answer: B
Rationale:
Phase I clinical trials involve a small number of healthy
volunteers (or patients in certain situations) and primarily
evaluate safety, tolerability, pharmacokinetics, and dosage
ranges. Preclinical testing (Option A) occurs before human
subjects are involved. Phase II (Option C) focuses on
effectiveness in patients with the disease while continuing
safety evaluation. Phase III (Option D) compares the new
therapy with standard treatments in much larger patient
populations.
Question 2
,A nurse is teaching a patient about why two individuals
receiving the same medication may experience different
therapeutic responses. Which explanation is most accurate?
A. Drug response is determined only by body weight.
B. Individual responses may vary because of genetic,
physiologic, and environmental factors.
C. Drug response depends only on the patient's age.
D. Medications produce identical effects in all patients when
prescribed correctly.
Correct Answer: B
Rationale:
Drug response varies because of multiple factors including
genetics, organ function, age, concurrent diseases, nutrition,
and drug interactions. Body weight (Option A) and age (Option
C) influence response but are not the only determinants. Option
D is incorrect because substantial variability exists among
patients.
Question 3
A nurse administers an intravenous medication for rapid pain
relief. Which characteristic of the intravenous route best
explains the rapid onset?
, A. The medication undergoes first-pass metabolism before
reaching circulation.
B. Drug absorption occurs slowly through adipose tissue.
C. The medication enters the systemic circulation directly.
D. Gastric acid enhances drug activation.
Correct Answer: C
Rationale:
Intravenous administration delivers medication directly into the
bloodstream, resulting in immediate systemic availability and
rapid onset. First-pass metabolism (Option A) occurs with many
orally administered medications, not intravenous drugs.
Adipose tissue absorption (Option B) is unrelated to IV
administration. Gastric acid (Option D) has no role in
intravenous drug delivery.
Question 4
A nurse is caring for a patient with severe liver dysfunction who
is beginning oral medication therapy. Which consideration is
most important?
A. Drug metabolism may be reduced, increasing the risk of
toxicity.
B. Drug elimination through the lungs is always increased.
C. Oral medications bypass hepatic metabolism.
