Pharmacology
12th Edition
• Author(s)Susan Ford
• Print ISBN: 9781975163730
TEST BANK
Question 1
,A nurse is reviewing a newly prescribed medication with a
patient. Which statement by the nurse best describes
pharmacology?
A. "Pharmacology is the study of how medications affect the
body and how the body responds to medications."
B. "Pharmacology focuses only on the adverse effects of
medications."
C. "Pharmacology is the study of herbal therapies and
supplements."
D. "Pharmacology refers only to the administration of
intravenous medications."
Correct Answer: A
Rationale:
Pharmacology is the scientific study of medications, including
their sources, properties, actions, therapeutic uses, adverse
effects, and how the body absorbs, distributes, metabolizes,
and eliminates them. Options B, C, and D describe only limited
aspects of medication therapy and do not encompass the broad
scope of pharmacology.
Question 2
,A nurse explains to a patient that a prescribed medication
works by blocking specific receptors in the body. This
explanation refers to which pharmacologic principle?
A. Pharmacokinetics
B. Pharmacodynamics
C. Drug metabolism
D. Drug excretion
Correct Answer: B
Rationale:
Pharmacodynamics describes what a drug does to the body,
including receptor interactions, mechanisms of action,
therapeutic effects, and adverse effects. Pharmacokinetics
involves what the body does to the drug through absorption,
distribution, metabolism, and excretion. Drug metabolism and
excretion are components of pharmacokinetics.
Question 3
A patient asks why an oral medication takes longer to work than
an intravenous medication. Which response by the nurse is
most accurate?
A. "Intravenous medications bypass the absorption process."
B. "Oral medications are always less effective."
, C. "Intravenous medications remain in the body longer."
D. "Oral medications cannot enter the bloodstream directly."
Correct Answer: A
Rationale:
Intravenous medications enter the bloodstream immediately,
bypassing the absorption phase. Oral medications require
absorption through the gastrointestinal tract before reaching
systemic circulation. Oral medications can be highly effective,
but their onset is typically slower than intravenous medications.
Question 4
A nurse administers a medication with a narrow therapeutic
index. What is the priority nursing action?
A. Monitor the patient for therapeutic and toxic effects.
B. Administer the medication with food.
C. Encourage increased fluid intake.
D. Assess the patient's pain level every 8 hours.
Correct Answer: A
Rationale:
Medications with a narrow therapeutic index have a small
margin between therapeutic and toxic doses. Careful