Lehne’s Pharmacology for Nursing Care 12th Edition Test Bank | Nursing Pharmacology Exam Questions | NCLEX Pharmacology Practice MCQs with Rationales | Burchum & Rosenthal

Lehne's Pharmacology for Nursing Care -
Elsevier e-Book on VitalSource, 12th
Edition
by Jacqueline Rosenjack Burchum, DNSc,
FNP-BC, CNE and Laura D. Rosenthal, DNP,
RN, ACNP-BC, FAANP



TEST BANK



Lehne's Pharmacology for Nursing Care
Unit I: Introduction
Chapter 1: Orientation to Pharmacology


1.
A nurse explains that pharmacology is primarily concerned with
which concept?
A. The psychological effects of medications

,B. The study of drugs and their interactions with living systems
C. Herbal and alternative therapies only
D. Surgical treatment of disease
Correct Answer: B
Rationale: Pharmacology is the study of drugs and their
interactions with living systems, including mechanisms and
effects.
Citation: Lehne’s Pharmacology for Nursing Care, 12th ed., Ch.
1: Orientation to Pharmacology.


2.
Which statement best describes pharmacokinetics?
A. What the drug does to the body
B. The study of adverse drug reactions
C. What the body does to the drug
D. The psychological response to medications
Correct Answer: C
Rationale: Pharmacokinetics describes absorption, distribution,
metabolism, and excretion—what the body does to the drug.
Citation: Lehne’s Pharmacology for Nursing Care, 12th ed., Ch.
1.


3.

,Pharmacodynamics refers to:
A. Drug movement through the body
B. Drug mechanisms of action
C. Drug cost analysis
D. Medication scheduling
Correct Answer: B
Rationale: Pharmacodynamics involves biochemical and
physiologic effects and mechanisms of action.
Citation: Lehne’s Pharmacology for Nursing Care, 12th ed., Ch.
1.


4.
Which term describes the strength of binding between a drug
and its receptor?
A. Efficacy
B. Potency
C. Affinity
D. Selectivity
Correct Answer: C
Rationale: Affinity refers to the strength of attraction between a
drug and its receptor.
Citation: Lehne’s Pharmacology for Nursing Care, 12th ed., Ch.
1.


5.

, A drug that produces maximal therapeutic effect regardless of
dose is demonstrating:
A. High potency
B. High efficacy
C. High selectivity
D. High toxicity
Correct Answer: B
Rationale: Efficacy refers to the maximum effect a drug can
produce.
Citation: Lehne’s Pharmacology for Nursing Care, 12th ed., Ch.
1.


6.
Which response best reflects a nurse’s understanding of drug
selectivity?
A. The drug affects many tissues equally
B. The drug produces no side effects
C. The drug targets specific receptors more than others
D. The drug works immediately
Correct Answer: C
Rationale: Selectivity refers to a drug’s ability to target specific
receptors; however, no drug is completely selective.
Citation: Lehne’s Pharmacology for Nursing Care, 12th ed., Ch.
1.