KATZUNG'S BASIC AND
CLINICAL PHARMACOLOGY
16TH EDITION
• AUTHOR(S)TODD W.
VANDERAH
TEST BANK
,Question 1
A nurse is teaching a group of nursing students about the
relationship between drug dose and therapeutic response.
Which statement by a student demonstrates an understanding
of this concept?
A. Increasing the dose always produces a greater therapeutic
effect without increasing risk.
B. Drug response generally increases with dose until a
maximum effect is reached.
C. All drugs produce the same response regardless of the
administered dose.
D. Once a therapeutic effect occurs, additional doses eliminate
adverse effects.
Correct Answer: B
Rationale:
Most medications exhibit a dose-response relationship in which
increasing the dose increases the therapeutic effect until a
maximal response is achieved. Beyond this point, higher doses
are more likely to increase toxicity rather than benefit. Option A
is incorrect because larger doses often increase adverse effects.
Option C ignores the principles of pharmacodynamics. Option D
is incorrect because additional dosing does not reduce adverse
effects and may worsen them.
,Question 2
A patient enrolled in a clinical research study asks why
participation requires signing an informed consent document.
Which response by the nurse is most appropriate?
A. "It guarantees the medication will be effective for you."
B. "It confirms that you understand the study, its risks, benefits,
and your right to withdraw."
C. "It prevents you from leaving the study once treatment
begins."
D. "It replaces discussions with the research team."
Correct Answer: B
Rationale:
Informed consent ensures that participants voluntarily agree to
participate after understanding the study's purpose, potential
risks, benefits, alternatives, and the right to withdraw at any
time without penalty. Option A is incorrect because
effectiveness cannot be guaranteed. Option C is incorrect
because participation is voluntary. Option D is incorrect because
informed consent supplements—not replaces—communication
with the research team.
Question 3
, A nurse administers a medication and observes the intended
therapeutic effect without significant adverse reactions. Which
term best describes this outcome?
A. Toxic effect
B. Therapeutic effect
C. Allergic reaction
D. Idiosyncratic response
Correct Answer: B
Rationale:
A therapeutic effect is the desired clinical response produced by
a medication. Option A refers to harmful effects resulting from
excessive drug action or accumulation. Option C describes an
immune-mediated hypersensitivity reaction. Option D refers to
an unusual or unpredictable response unrelated to the
expected pharmacologic action.
Question 4
A patient develops severe hypotension after receiving the first
dose of a newly prescribed medication. The nurse should
recognize this as an example of which principle?
A. Every patient responds identically to medications.
B. Individual variability influences drug response.
CLINICAL PHARMACOLOGY
16TH EDITION
• AUTHOR(S)TODD W.
VANDERAH
TEST BANK
,Question 1
A nurse is teaching a group of nursing students about the
relationship between drug dose and therapeutic response.
Which statement by a student demonstrates an understanding
of this concept?
A. Increasing the dose always produces a greater therapeutic
effect without increasing risk.
B. Drug response generally increases with dose until a
maximum effect is reached.
C. All drugs produce the same response regardless of the
administered dose.
D. Once a therapeutic effect occurs, additional doses eliminate
adverse effects.
Correct Answer: B
Rationale:
Most medications exhibit a dose-response relationship in which
increasing the dose increases the therapeutic effect until a
maximal response is achieved. Beyond this point, higher doses
are more likely to increase toxicity rather than benefit. Option A
is incorrect because larger doses often increase adverse effects.
Option C ignores the principles of pharmacodynamics. Option D
is incorrect because additional dosing does not reduce adverse
effects and may worsen them.
,Question 2
A patient enrolled in a clinical research study asks why
participation requires signing an informed consent document.
Which response by the nurse is most appropriate?
A. "It guarantees the medication will be effective for you."
B. "It confirms that you understand the study, its risks, benefits,
and your right to withdraw."
C. "It prevents you from leaving the study once treatment
begins."
D. "It replaces discussions with the research team."
Correct Answer: B
Rationale:
Informed consent ensures that participants voluntarily agree to
participate after understanding the study's purpose, potential
risks, benefits, alternatives, and the right to withdraw at any
time without penalty. Option A is incorrect because
effectiveness cannot be guaranteed. Option C is incorrect
because participation is voluntary. Option D is incorrect because
informed consent supplements—not replaces—communication
with the research team.
Question 3
, A nurse administers a medication and observes the intended
therapeutic effect without significant adverse reactions. Which
term best describes this outcome?
A. Toxic effect
B. Therapeutic effect
C. Allergic reaction
D. Idiosyncratic response
Correct Answer: B
Rationale:
A therapeutic effect is the desired clinical response produced by
a medication. Option A refers to harmful effects resulting from
excessive drug action or accumulation. Option C describes an
immune-mediated hypersensitivity reaction. Option D refers to
an unusual or unpredictable response unrelated to the
expected pharmacologic action.
Question 4
A patient develops severe hypotension after receiving the first
dose of a newly prescribed medication. The nurse should
recognize this as an example of which principle?
A. Every patient responds identically to medications.
B. Individual variability influences drug response.
