KATZUNG'S BASIC AND
CLINICAL PHARMACOLOGY
16TH EDITION
• AUTHOR(S)TODD W.
VANDERAH
TEST BANK
,Question 1
A nurse is reviewing the medication profile of a client who asks
why a newly prescribed medication is expected to produce a
therapeutic effect at a relatively low dose. Which explanation
by the nurse best reflects a fundamental principle of
pharmacology?
A. Drugs produce effects by interacting with specific biologic
targets in the body.
B. All medications work by permanently changing cell structure.
C. Drug effects depend only on the amount of medication
administered.
D. Most medications act by supplying additional nutrients to
tissues.
Correct Answer: A
Rationale:
Many medications produce therapeutic effects by binding to
specific biologic targets such as receptors, enzymes, ion
channels, or transport proteins. This interaction initiates or
blocks physiologic processes. Option B is incorrect because
most drugs do not permanently alter cell structure. Option C is
incorrect because dose is important, but drug response also
depends on receptor interactions and patient-specific factors.
,Option D is incorrect because medications generally modify
physiologic processes rather than function as nutrients.
Question 2
A client asks why one medication can treat a disease without
curing its underlying cause. Which response by the nurse is
most accurate?
A. Medications always eliminate the source of disease.
B. Some medications relieve symptoms or modify disease
processes without removing the original cause.
C. All medications permanently restore normal body function.
D. Drug therapy eliminates the need for other treatments.
Correct Answer: B
Rationale:
Many medications reduce symptoms, slow disease progression,
or improve physiologic function without eliminating the
underlying cause of illness. Option A is incorrect because not all
medications cure disease. Option C is incorrect because
therapeutic effects may be temporary or require ongoing
treatment. Option D is incorrect because pharmacologic
therapy is often combined with surgery, lifestyle changes,
rehabilitation, or other interventions.
Question 3
, A nurse administers a medication that produces the intended
therapeutic response. Which term best describes the desired
outcome?
A. Adverse effect
B. Toxicity
C. Therapeutic effect
D. Idiosyncratic reaction
Correct Answer: C
Rationale:
A therapeutic effect is the intended beneficial clinical response
to a medication. Option A refers to an unintended undesirable
effect. Option B indicates harmful effects resulting from
excessive drug exposure or accumulation. Option D refers to an
unusual or unpredictable response that differs from expected
pharmacologic effects.
Question 4
A client participating in a clinical research study asks why
informed consent is required before receiving an investigational
medication. Which nursing response is most appropriate?
A. It ensures the participant understands the study, its potential
risks, benefits, and alternatives before voluntarily participating.
B. It guarantees that the medication will be effective.
CLINICAL PHARMACOLOGY
16TH EDITION
• AUTHOR(S)TODD W.
VANDERAH
TEST BANK
,Question 1
A nurse is reviewing the medication profile of a client who asks
why a newly prescribed medication is expected to produce a
therapeutic effect at a relatively low dose. Which explanation
by the nurse best reflects a fundamental principle of
pharmacology?
A. Drugs produce effects by interacting with specific biologic
targets in the body.
B. All medications work by permanently changing cell structure.
C. Drug effects depend only on the amount of medication
administered.
D. Most medications act by supplying additional nutrients to
tissues.
Correct Answer: A
Rationale:
Many medications produce therapeutic effects by binding to
specific biologic targets such as receptors, enzymes, ion
channels, or transport proteins. This interaction initiates or
blocks physiologic processes. Option B is incorrect because
most drugs do not permanently alter cell structure. Option C is
incorrect because dose is important, but drug response also
depends on receptor interactions and patient-specific factors.
,Option D is incorrect because medications generally modify
physiologic processes rather than function as nutrients.
Question 2
A client asks why one medication can treat a disease without
curing its underlying cause. Which response by the nurse is
most accurate?
A. Medications always eliminate the source of disease.
B. Some medications relieve symptoms or modify disease
processes without removing the original cause.
C. All medications permanently restore normal body function.
D. Drug therapy eliminates the need for other treatments.
Correct Answer: B
Rationale:
Many medications reduce symptoms, slow disease progression,
or improve physiologic function without eliminating the
underlying cause of illness. Option A is incorrect because not all
medications cure disease. Option C is incorrect because
therapeutic effects may be temporary or require ongoing
treatment. Option D is incorrect because pharmacologic
therapy is often combined with surgery, lifestyle changes,
rehabilitation, or other interventions.
Question 3
, A nurse administers a medication that produces the intended
therapeutic response. Which term best describes the desired
outcome?
A. Adverse effect
B. Toxicity
C. Therapeutic effect
D. Idiosyncratic reaction
Correct Answer: C
Rationale:
A therapeutic effect is the intended beneficial clinical response
to a medication. Option A refers to an unintended undesirable
effect. Option B indicates harmful effects resulting from
excessive drug exposure or accumulation. Option D refers to an
unusual or unpredictable response that differs from expected
pharmacologic effects.
Question 4
A client participating in a clinical research study asks why
informed consent is required before receiving an investigational
medication. Which nursing response is most appropriate?
A. It ensures the participant understands the study, its potential
risks, benefits, and alternatives before voluntarily participating.
B. It guarantees that the medication will be effective.
