KATZUNG'S BASIC AND
CLINICAL PHARMACOLOGY
16TH EDITION
• AUTHOR(S)TODD W.
VANDERAH
TEST BANK
,Question 1
A nurse is teaching a group of newly hired nurses about the
difference between pharmacodynamics and pharmacokinetics.
Which statement by a participant indicates correct
understanding?
A. Pharmacodynamics describes how the body absorbs,
distributes, metabolizes, and excretes a medication.
B. Pharmacodynamics explains how a medication produces its
effects on the body.
C. Pharmacodynamics focuses only on the elimination of
medications through the kidneys.
D. Pharmacodynamics refers exclusively to adverse drug
reactions.
Correct Answer: B
Rationale:
Pharmacodynamics describes what a drug does to the body,
including its mechanism of action, therapeutic effects, and
dose-response relationships. Option A describes
pharmacokinetics. Option C addresses only one aspect of
pharmacokinetics, while option D is too narrow because
pharmacodynamics includes both therapeutic and adverse
effects.
,Question 2
A nurse is preparing to administer the first dose of an
antihypertensive medication. Which nursing action best
promotes medication safety?
A. Administer the medication before reviewing the client's
allergies.
B. Verify the medication order, identify the client using
approved identifiers, and assess baseline blood pressure.
C. Delay administration until the client requests the medication.
D. Administer the medication without assessing vital signs
because it is the initial dose.
Correct Answer: B
Rationale:
Medication safety includes verifying the prescription,
confirming the client's identity using approved identifiers,
reviewing allergies, and assessing baseline parameters relevant
to the medication. Options A and D omit essential safety
assessments. Option C may unnecessarily delay therapy without
clinical justification.
Question 3
, A client asks why two medications that treat the same condition
are available in different doses. Which response by the nurse is
most appropriate?
A. Every client responds to medications in exactly the same way.
B. Individual factors such as age, organ function, genetics, and
concurrent medications can influence the appropriate dose.
C. The highest available dose is always the most effective.
D. Medication doses are selected randomly by the
manufacturer.
Correct Answer: B
Rationale:
Drug response varies among individuals due to multiple patient-
specific factors, including age, body composition, liver and
kidney function, genetics, disease states, and drug interactions.
Option A is incorrect because variability is common. Option C
increases the risk of toxicity, and option D is inaccurate because
dosing recommendations are based on clinical research.
Question 4
A nurse recognizes that a medication acts as a receptor
antagonist. What effect should the nurse expect?
A. It stimulates the receptor to produce a maximal response.
B. It blocks or reduces activation of the receptor by agonists.
CLINICAL PHARMACOLOGY
16TH EDITION
• AUTHOR(S)TODD W.
VANDERAH
TEST BANK
,Question 1
A nurse is teaching a group of newly hired nurses about the
difference between pharmacodynamics and pharmacokinetics.
Which statement by a participant indicates correct
understanding?
A. Pharmacodynamics describes how the body absorbs,
distributes, metabolizes, and excretes a medication.
B. Pharmacodynamics explains how a medication produces its
effects on the body.
C. Pharmacodynamics focuses only on the elimination of
medications through the kidneys.
D. Pharmacodynamics refers exclusively to adverse drug
reactions.
Correct Answer: B
Rationale:
Pharmacodynamics describes what a drug does to the body,
including its mechanism of action, therapeutic effects, and
dose-response relationships. Option A describes
pharmacokinetics. Option C addresses only one aspect of
pharmacokinetics, while option D is too narrow because
pharmacodynamics includes both therapeutic and adverse
effects.
,Question 2
A nurse is preparing to administer the first dose of an
antihypertensive medication. Which nursing action best
promotes medication safety?
A. Administer the medication before reviewing the client's
allergies.
B. Verify the medication order, identify the client using
approved identifiers, and assess baseline blood pressure.
C. Delay administration until the client requests the medication.
D. Administer the medication without assessing vital signs
because it is the initial dose.
Correct Answer: B
Rationale:
Medication safety includes verifying the prescription,
confirming the client's identity using approved identifiers,
reviewing allergies, and assessing baseline parameters relevant
to the medication. Options A and D omit essential safety
assessments. Option C may unnecessarily delay therapy without
clinical justification.
Question 3
, A client asks why two medications that treat the same condition
are available in different doses. Which response by the nurse is
most appropriate?
A. Every client responds to medications in exactly the same way.
B. Individual factors such as age, organ function, genetics, and
concurrent medications can influence the appropriate dose.
C. The highest available dose is always the most effective.
D. Medication doses are selected randomly by the
manufacturer.
Correct Answer: B
Rationale:
Drug response varies among individuals due to multiple patient-
specific factors, including age, body composition, liver and
kidney function, genetics, disease states, and drug interactions.
Option A is incorrect because variability is common. Option C
increases the risk of toxicity, and option D is inaccurate because
dosing recommendations are based on clinical research.
Question 4
A nurse recognizes that a medication acts as a receptor
antagonist. What effect should the nurse expect?
A. It stimulates the receptor to produce a maximal response.
B. It blocks or reduces activation of the receptor by agonists.
