KATZUNG'S BASIC AND
CLINICAL PHARMACOLOGY
16TH EDITION
• AUTHOR(S)TODD W.
VANDERAH
TEST BANK
,Question 1
A nurse is explaining why a medication must complete multiple
phases of clinical testing before it can be marketed. Which
statement best describes the primary purpose of these clinical
trials?
A. To determine whether the medication is less expensive than
existing therapies
B. To evaluate the medication's safety, effectiveness, and
appropriate dosing in humans
C. To identify the medication's manufacturing costs before
approval
D. To establish insurance reimbursement rates
Correct Answer: B
Rationale:
Clinical trials are designed to evaluate a medication's safety,
efficacy, adverse effects, and appropriate dosage in human
participants before regulatory approval. Cost, manufacturing
expenses, and insurance reimbursement are not the primary
objectives of clinical trials.
Question 2
,A patient asks why two individuals taking the same medication
may experience different responses. Which explanation by the
nurse is most accurate?
A. Drug responses are identical in all healthy adults.
B. Individual responses vary because of factors such as genetics,
age, organ function, and interactions with other medications.
C. Drug effectiveness depends only on body weight.
D. Medication response is determined solely by the route of
administration.
Correct Answer: B
Rationale:
Individual drug responses vary because of pharmacogenetic
differences, age, renal and hepatic function, concurrent
illnesses, and drug interactions. Weight and route of
administration influence therapy but do not fully explain
variability.
Question 3
A nurse administers an antihypertensive medication that lowers
a patient's blood pressure by relaxing vascular smooth muscle.
Which pharmacologic concept is illustrated?
A. Pharmacodynamics
B. Pharmacoeconomics
, C. Drug distribution
D. Drug excretion
Correct Answer: A
Rationale:
Pharmacodynamics describes what a drug does to the body,
including its mechanism of action and physiologic effects.
Distribution and excretion are pharmacokinetic processes, while
pharmacoeconomics evaluates cost and value.
Question 4
A nurse reviews a patient's medication list before administering
a newly prescribed antibiotic. Which nursing action best
promotes medication safety?
A. Administer the antibiotic immediately because it has already
been prescribed.
B. Review the patient's allergies, current medications, and
medical history for potential interactions or contraindications.
C. Delay all medications until laboratory results are available.
D. Ask the patient to determine whether the medication is
appropriate.
Correct Answer: B
Rationale:
CLINICAL PHARMACOLOGY
16TH EDITION
• AUTHOR(S)TODD W.
VANDERAH
TEST BANK
,Question 1
A nurse is explaining why a medication must complete multiple
phases of clinical testing before it can be marketed. Which
statement best describes the primary purpose of these clinical
trials?
A. To determine whether the medication is less expensive than
existing therapies
B. To evaluate the medication's safety, effectiveness, and
appropriate dosing in humans
C. To identify the medication's manufacturing costs before
approval
D. To establish insurance reimbursement rates
Correct Answer: B
Rationale:
Clinical trials are designed to evaluate a medication's safety,
efficacy, adverse effects, and appropriate dosage in human
participants before regulatory approval. Cost, manufacturing
expenses, and insurance reimbursement are not the primary
objectives of clinical trials.
Question 2
,A patient asks why two individuals taking the same medication
may experience different responses. Which explanation by the
nurse is most accurate?
A. Drug responses are identical in all healthy adults.
B. Individual responses vary because of factors such as genetics,
age, organ function, and interactions with other medications.
C. Drug effectiveness depends only on body weight.
D. Medication response is determined solely by the route of
administration.
Correct Answer: B
Rationale:
Individual drug responses vary because of pharmacogenetic
differences, age, renal and hepatic function, concurrent
illnesses, and drug interactions. Weight and route of
administration influence therapy but do not fully explain
variability.
Question 3
A nurse administers an antihypertensive medication that lowers
a patient's blood pressure by relaxing vascular smooth muscle.
Which pharmacologic concept is illustrated?
A. Pharmacodynamics
B. Pharmacoeconomics
, C. Drug distribution
D. Drug excretion
Correct Answer: A
Rationale:
Pharmacodynamics describes what a drug does to the body,
including its mechanism of action and physiologic effects.
Distribution and excretion are pharmacokinetic processes, while
pharmacoeconomics evaluates cost and value.
Question 4
A nurse reviews a patient's medication list before administering
a newly prescribed antibiotic. Which nursing action best
promotes medication safety?
A. Administer the antibiotic immediately because it has already
been prescribed.
B. Review the patient's allergies, current medications, and
medical history for potential interactions or contraindications.
C. Delay all medications until laboratory results are available.
D. Ask the patient to determine whether the medication is
appropriate.
Correct Answer: B
Rationale:
