KATZUNG'S BASIC AND
CLINICAL PHARMACOLOGY
16TH EDITION
• AUTHOR(S)TODD W.
VANDERAH
TEST BANK
,Question 1
A nurse is teaching a patient about why a newly prescribed
medication may take years to become available after it is
discovered. Which explanation is most accurate?
A. All medications become available immediately after
laboratory testing is completed.
B. Drug development includes preclinical testing, multiple
phases of clinical trials, and regulatory review to evaluate
safety, efficacy, and quality.
C. Medications are approved after only animal testing if no
toxicity is observed.
D. Regulatory agencies evaluate only manufacturing costs
before approval.
Correct Answer: B
Rationale:
Drug development is a lengthy process that typically includes
laboratory and animal studies (preclinical testing), multiple
phases of human clinical trials, and extensive regulatory review
before approval. This process is intended to demonstrate safety,
effectiveness, and manufacturing quality. Option A is incorrect
because laboratory testing alone is insufficient. Option C is
incorrect because human clinical trials are required before
approval. Option D is incorrect because regulatory review
,focuses primarily on safety, efficacy, and product quality rather
than manufacturing costs.
Question 2
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. Pharmacogenomics
D. Pharmacovigilance
Correct Answer: A
Rationale:
Pharmacodynamics describes what a drug does to the body,
including its mechanism of action and physiologic effects.
Relaxation of vascular smooth muscle resulting in reduced
blood pressure is a pharmacodynamic effect.
Pharmacoeconomics evaluates costs and outcomes.
Pharmacogenomics examines genetic influences on drug
response. Pharmacovigilance involves ongoing monitoring for
adverse drug events after marketing.
Question 3
, A patient asks why two people taking the same medication can
experience different therapeutic responses. Which nurse
response is most appropriate?
A. Everyone responds identically when taking the same dose.
B. Individual responses may vary because of age, genetics,
organ function, concurrent illnesses, and other medications.
C. Only body weight determines medication response.
D. Differences occur only if the medication is administered
intravenously.
Correct Answer: B
Rationale:
Drug response is influenced by numerous patient-specific
factors, including genetic variation, hepatic and renal function,
age, comorbidities, drug interactions, and adherence. These
variables contribute to differences in therapeutic response and
adverse effects. The other options oversimplify or inaccurately
describe factors affecting medication response.
Question 4
Before administering a newly prescribed medication, which
nursing action best promotes medication safety?
A. Administer the medication immediately to avoid delaying
treatment.
CLINICAL PHARMACOLOGY
16TH EDITION
• AUTHOR(S)TODD W.
VANDERAH
TEST BANK
,Question 1
A nurse is teaching a patient about why a newly prescribed
medication may take years to become available after it is
discovered. Which explanation is most accurate?
A. All medications become available immediately after
laboratory testing is completed.
B. Drug development includes preclinical testing, multiple
phases of clinical trials, and regulatory review to evaluate
safety, efficacy, and quality.
C. Medications are approved after only animal testing if no
toxicity is observed.
D. Regulatory agencies evaluate only manufacturing costs
before approval.
Correct Answer: B
Rationale:
Drug development is a lengthy process that typically includes
laboratory and animal studies (preclinical testing), multiple
phases of human clinical trials, and extensive regulatory review
before approval. This process is intended to demonstrate safety,
effectiveness, and manufacturing quality. Option A is incorrect
because laboratory testing alone is insufficient. Option C is
incorrect because human clinical trials are required before
approval. Option D is incorrect because regulatory review
,focuses primarily on safety, efficacy, and product quality rather
than manufacturing costs.
Question 2
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. Pharmacogenomics
D. Pharmacovigilance
Correct Answer: A
Rationale:
Pharmacodynamics describes what a drug does to the body,
including its mechanism of action and physiologic effects.
Relaxation of vascular smooth muscle resulting in reduced
blood pressure is a pharmacodynamic effect.
Pharmacoeconomics evaluates costs and outcomes.
Pharmacogenomics examines genetic influences on drug
response. Pharmacovigilance involves ongoing monitoring for
adverse drug events after marketing.
Question 3
, A patient asks why two people taking the same medication can
experience different therapeutic responses. Which nurse
response is most appropriate?
A. Everyone responds identically when taking the same dose.
B. Individual responses may vary because of age, genetics,
organ function, concurrent illnesses, and other medications.
C. Only body weight determines medication response.
D. Differences occur only if the medication is administered
intravenously.
Correct Answer: B
Rationale:
Drug response is influenced by numerous patient-specific
factors, including genetic variation, hepatic and renal function,
age, comorbidities, drug interactions, and adherence. These
variables contribute to differences in therapeutic response and
adverse effects. The other options oversimplify or inaccurately
describe factors affecting medication response.
Question 4
Before administering a newly prescribed medication, which
nursing action best promotes medication safety?
A. Administer the medication immediately to avoid delaying
treatment.
