Lehne's Pharmacology for Nursing
Care
12th Edition
• Author(s)Jacqueline Rosenjack
Burchum; Laura D. Rosenthal
,TEST BANK
Question 1 — Multiple Choice (MCQ)
Clinical Scenario
A newly licensed nurse is preparing to administer an
antihypertensive medication. Before administration, the patient
asks, "How does this medicine actually lower my blood
pressure?"
Question
Which response by the nurse best describes
pharmacodynamics?
A. It explains how the body absorbs, distributes, metabolizes,
and excretes a drug.
B. It describes how a drug produces its therapeutic and adverse
effects within the body.
C. It refers to the chemical composition of a medication.
D. It describes how medications are approved before reaching
the market.
Correct Answer
, B
Detailed Rationale
Pharmacodynamics is the study of what a drug does to the
body. It focuses on receptor interactions, mechanisms of
action, therapeutic effects, dose-response relationships, and
adverse effects. Understanding pharmacodynamics enables
nurses to anticipate expected responses, recognize toxicity, and
evaluate treatment effectiveness.
Pharmacokinetics, by contrast, explains what the body does to
the drug (absorption, distribution, metabolism, and excretion).
Incorrect Option Analysis
Option A
Why Incorrect
This defines pharmacokinetics rather than pharmacodynamics.
Common Misconception
Students frequently confuse pharmacodynamics with
pharmacokinetics because both describe drug actions.
Medication Safety Risk
, Misunderstanding these concepts may impair recognition of
delayed onset or prolonged drug effects.
Appropriate Nursing Consideration
Assess whether altered organ function could influence
pharmacokinetic processes.
Option C
Why Incorrect
Chemical composition does not define pharmacodynamics.
Common Misconception
Learners sometimes assume pharmacology primarily concerns
drug chemistry.
Medication Safety Risk
Overlooking mechanism of action can lead to inadequate
patient education.
Appropriate Nursing Consideration
Explain therapeutic action in language patients understand.
Option D
Why Incorrect
Care
12th Edition
• Author(s)Jacqueline Rosenjack
Burchum; Laura D. Rosenthal
,TEST BANK
Question 1 — Multiple Choice (MCQ)
Clinical Scenario
A newly licensed nurse is preparing to administer an
antihypertensive medication. Before administration, the patient
asks, "How does this medicine actually lower my blood
pressure?"
Question
Which response by the nurse best describes
pharmacodynamics?
A. It explains how the body absorbs, distributes, metabolizes,
and excretes a drug.
B. It describes how a drug produces its therapeutic and adverse
effects within the body.
C. It refers to the chemical composition of a medication.
D. It describes how medications are approved before reaching
the market.
Correct Answer
, B
Detailed Rationale
Pharmacodynamics is the study of what a drug does to the
body. It focuses on receptor interactions, mechanisms of
action, therapeutic effects, dose-response relationships, and
adverse effects. Understanding pharmacodynamics enables
nurses to anticipate expected responses, recognize toxicity, and
evaluate treatment effectiveness.
Pharmacokinetics, by contrast, explains what the body does to
the drug (absorption, distribution, metabolism, and excretion).
Incorrect Option Analysis
Option A
Why Incorrect
This defines pharmacokinetics rather than pharmacodynamics.
Common Misconception
Students frequently confuse pharmacodynamics with
pharmacokinetics because both describe drug actions.
Medication Safety Risk
, Misunderstanding these concepts may impair recognition of
delayed onset or prolonged drug effects.
Appropriate Nursing Consideration
Assess whether altered organ function could influence
pharmacokinetic processes.
Option C
Why Incorrect
Chemical composition does not define pharmacodynamics.
Common Misconception
Learners sometimes assume pharmacology primarily concerns
drug chemistry.
Medication Safety Risk
Overlooking mechanism of action can lead to inadequate
patient education.
Appropriate Nursing Consideration
Explain therapeutic action in language patients understand.
Option D
Why Incorrect
